While working at a computer or laptop, you use a headset for individual listening to audio recordings. And you have repeatedly faced with the question - how to increase the volume in headphones? Let's consider some variants.
When connecting headphones to a connector on any device, make sure that you insert the connector completely until a characteristic click occurs. On the monitor screen in the lower right corner there is a system tray with a headphone icon. Do not forget to immediately increase the volume with the controller, which is located on the headset wire. When using headphones for watching movies and listening to music, you can adjust the volume in the player at your discretion.
In case the above methods did not help you increase the volume - test the headset on another device, it may be time to replace the headphones or sound card of the computer, or reinstall the sound drivers.
Maybe you were faced with the fact that when watching movies (movies) through any player, the music (sound) was quiet. Although like and the column is good and the volume is at a maximum everywhere, but it is when watching the sound is quiet.
In this article I will show you a few good ways, which will help improve (improve) the sound in movies when viewed through the players. Although they can improve not only in this case, but in general the whole sound in the computer.
So, suppose you use a rather popular player to watch movies Media Player Classic (MPC) which comes in the composition of the K-Lite Codec Pack (and you for any of them had to install).
Then in this player in the top menu we choose:
Play -\u003e Audio -\u003e Options ...
And set the settings as below:
Now suppose that you are using another player for playback (usually when there are no codecs or are accustomed to it) - this is a standard player Windows Media.
Here we will need to configure the built-in Graphic Equalizer (click the Right Mouse Button on any free space in the player):
And here in it already tune these strips (above / below) to your taste.
By the way, there you can also choose the pre-installed (if you click on the "Default" link) equalizer.
Now we will deal with the system itself. There are a couple of settings in it, about which very few people know and do not use them.
So, I show for Windows 7 (I do not know about the others, because "at hand" they are not).
We go in Sounds. This can be done either through Control Panel -> Sounds (when viewing by icons).
Instructions
In order to increase the volume of the music played on the player, you can work with the volume of the original track. To do this you will need to download and install the editor for audio files. The best options are Adobe Audition and Sony Sound Forge. These editors support fast processing and the best quality of compression after processing. In order to process the track, load it into the editor, then normalize, carefully following the euphony of the track. Save the result of processing on the computer hard disk.
The fastest way to increase the volume for several songs is to use the mp3gain program. This program can perform only one function - to increase the level of the sound of the track, but it is able to process several files at the same time, in contrast to the above music editors. Download it from the Internet and install it on your computer. After that, increase the volume of the tracks intended for download to the player.
In case you have an equalizer on the player, you can also use it to increase the volume of the music. All you need to do is set all equalizer frequencies to maximum, and then save this setting. Make sure that in the race for the volume of music, her euphony is not lost.
The usual detector receiver sounds very quiet. Zoom in volume sound in the headphones, and at the same time, sometimes the number of received stations can be done by making the simplest amplifier. It will also help in some cases without a complex and dangerous outdoor antenna.
Instructions
Take almost any low-power flat bipolar transistor. Its emitter is connected to the common wire, and the collector through the serially connected headphones and the switch, which is in the disconnected position - to the power supply voltage of several volts. If the transistor has the structure n-p-n, the common wire must have a negative pole of the power source, if p-n-p is positive.
Make sure that your detector receiver is built in accordance with safety requirements. If an outdoor antenna is used, check that the ground is correctly arranged and there is a lightning switch. Do not forget to use it correctly.
As a load, connect to the detector receiver instead of headphones (they are now connected to the amplifier) with a resistor of 10 kΩ. Connect the common wires of the receiver and amplifier together.
From the point of connection of the detector diode and the resistor, give a signal to the base of the transistor through a capacitor with a capacitance of about 0.1 μF.
Turn on the switch. You will hear a hoarse, but loud sound. Try to connect a resistor between the collector and the base resistor in a few hundred kilo, until it solder it. Try using resistors with less and less resistance until the wheeze disappears.
Turn off the power, solder the resistor you selected, then turn the power back on and start using the receiver.
If desired, replace the headphones with more comfortable low-resistance ones, re-picking up the resistor.
If you do not have a detector receiver yet, after building it, immediately produce an amplifier. Instead of using an outdoor antenna, you can use a room one, which can be built more quickly, and for which a lightning switch and grounding are not required.
To build a multistage amplifier, connect to the previous cascade instead of headphones Resistor with the same resistance as was headphones, then from the point of connection of the resistor to the collector of the transistor through a capacitor with a capacity of 0.1 μF send the signal to the base of the transistor of the next stage. The sensitivity of the amplifier will increase. To avoid self-excitation, it is not recommended to place more than three cascades in the amplifier.
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Install is not difficult. As a rule, it should be installed automatically, because modern operating systems contain a lot of drivers and a hardware determiner. Otherwise, you need to use different drivers or configure the BIOS.
Instructions
Set under favorable conditions is very simple. As a rule, after windows installations should appear automatically, as modern versions of this operating system (starting with Windows XP) are equipped with driver sets. If it does not appear automatically, then in the system tray (the notification area is usually at the bottom right, not far from the clock) there should appear an inscription "found new equipment", where the new card should be included. During the installation, you will be prompted for the driver category of your new card. It is best to use a system or special disk containing drivers for this, or try to specify the directory C: WINDOWSsystem32drivers
If it is not installed as standard, and there is no automatic notification, then you need to do it manually. It is necessary to right click on "my computer", then select "properties", in the properties click on the tab "equipment", there select the device manager. In the controller itself, you can try clicking on "marketing, video and gaming devices", then select the item "update the hardware configuration" from the top. Then specify either the director with windows drivers, or (if any) use a special driver disk.
You can also use the Everest utility to find drivers, it precisely identifies the devices and helps in searching the right drivers. If there are no technical obstacles in installing the driver, then this method should help.
Sometimes the marketing card is disabled in BIOS. Such a conflict often arises due to the fact that there is a built-in (on the motherboard) and a separate marketing card. In this case it is desirable
Portable computers are often used outside the home and against a background of general noise their volume turns out to be very quiet. Sometimes this is due to the weak speakers that the manufacturers have installed, but the user can improve the sound. There are several options, how to adjust the volume on the laptop, adjust the settings.
How to increase the sound on a laptop in Windows settings
First you need to understand the parameters of the operating system. Some users do not notice that the overall volume level in Windows is not raised by 100%, so the first step is how to increase the volume of the sound on the laptop - check the system tray. In the bottom right corner, find the speaker icon and click on it, the slider must be completely moved to the right side.
The same operation can be performed using the function buttons on the keyboard. Find the button on the computer in the bottom row with "Fn" beeches, then check all additional "F" buttons, on one of them, the speaker icon should be drawn. Hold the function key and press the enhancement button several times. After that, go to the player, where you listen to music or watch a movie, and check if the slider moves the sound to full power. If, after this, the sound level on the computer is still quiet, you can perform the following adjustments:
- Right-click the speaker icon in the system tray.
- Select "Playback Devices".
- In the "Playback" tab, find the speaker icon, click the left button and click the "Properties" button below.
- Go to the "Improvements" tab, tick the "Equalizer" checkbox.
- Find the settings button below and go to them.
- In the appeared window, raise the sliders up and save the changes.
Note that if your computer has quiet speakers, then this method of adjusting the volume will only lead to the appearance of cod, noise due to overload. It is recommended to increase the value of the sound gradually, achieving an optimal ratio of the level of audibility and interference. If you can not achieve this goal, you should buy computer speakers that will make your laptop really loud.
How to enhance the sound on the laptop in the player
To add a volume to a quiet PC, you can use a standard player. This is a built-in program that is designed to play music, watching movies - Windows Media Player. With this method, you can increase the volume only for those files that will play the application, all other sounds will remain at the same level. What should be done:
- Next to the controls (start, stop, rewind) is the slider of the volume control, move it to the right to the stop.
How to add sound to a laptop using speakers
If all of the above manipulations do not help to achieve the desired level of sound, then you can use the proven method - buy columns. Yes, this is not a free option, for a couple of speakers will have to pay, but the cost of a pair with USB connection not so high (simple models in the region of 400-500 rubles). But this method will give a 100% guarantee of the increase in the power of the speakers. How to choose speakers for a laptop:
- Look for models with a maximum dB (power), this option will give the maximum for your computer;
- Give preference to products with a USB connection, because not always there will be an additional socket for the plug from the speakers.
- Do not buy the cheapest model. Yes, they will work, but the sound quality will disappoint you. Ask the seller to include the product in any laptop or player to hear how the frequencies from these speakers are transmitted.
If you are using the laptop for the most part at home, you rarely take it outside and increase the sound necessary for sharing movies with friends, then the choice should be made in the direction of larger columns. The larger the area of the speakers, the better the audio quality, the higher the volume without distortion. These models, as a rule, have a connection via a 3.5 mm plug and plug into the outlet. This fact does not make them call them portable.
Amplify the volume on the laptop through the driver
Another free method, how to make the volume on the laptop more - use the audio card driver and its settings. To do this you will need to download a special package with codecs that have additional built-in parameters that allow you to raise the sound level. The procedure is as follows:
- Download kit K-Lite Codec, they are free posted on the official website.
- Install a full set of codecs.
- Run the movie in any player that you use. Right click on the player, then go to the path: "Play"\u003e "Filter"\u003e "fffshow audio decoder".
- In the window that appears, find the "volume" section in the left menu, click on it.
- The "Master Volume" knob will appear, drag it to the right.
As a rule, modern motherboards have a built-in sound card, so along with the drivers for the motherboard there is an HD Audio Driver. This can be Realteck or VIA (new models), which have their own functionality for adjusting the quality of playback of audio files on the computer. When you click on the icon in the system tray, an equalizer opens before you, which allows you to make additional settings in the quality and sound level of the media files.
Program for increasing the volume of sound on a laptop
If the above methods do not bring the desired result, you can help the program to increase the sound on the laptop. There are many options for such utilities, which introduce additional opportunities for increasing the power of the speakers. As a rule, you can download them for free and there are no difficulties in setting up. Below are the most popular applications to increase the volume on your laptop:
- Hear;
- Sound Booster;
- SRS Audio SandBox;
- Audio Amplifier.
How to increase the volume on your laptop in Sound Booster
This is a common, convenient, easy-to-configure program. This option, how to increase the volume on the laptop, amplifies the sound throughout the system, rather than in a separate player. The utility has the following features:
- Sound Booster can increase the power of speakers up to 500% in programs for communication, a browser, any audio or video player. It is not recommended to immediately put out the full power, so as not to tear the membrane of the speakers.
- Simple volume control, you can set keyboard shortcuts for these purposes.
- The program can be configured to autorun along with Windows, so that the sound is immediately at the desired level.
- Gorgeous application filters help to preserve the original sound of the file without creating distortion of the sound.
How to make your laptop louder with the Hear program
This version of the program helps not only increase the volume level, but also improve the sound of the file. The utility is able to create a more voluminous sound, has a convenient equalizer for tuning frequencies, has built-in emulators. The main advantage of the application can be considered the ability to adjust the frequency of the speakers, eliminating noise and making the bass more "juicy". The program window has a beautiful design and a clear interface.
Increase the sound on your laptop with Audio Amplifier
This utility has proven itself in working with low-quality multimedia files. Just a few buttons can increase the volume level, set up additional filters to improve the sound quality. An important utility of the utility is the ability to equalize the playback volume. This is useful when the songs in the playlist have different levels of sound and you need to avoid sudden jumps.
Increase the volume on the laptop in SRS Audio SandBox
Another option, how to increase the volume on the laptop - application SRS Audio SandBox. Strongly improves the sound quality of standard speakers, increases the overall sound level. The utility is equipped with a large number of built-in tools for flexible system configuration. The process is very simple, understandable even for a novice user. The application is capable of:
- raise the sound level;
- strengthen low frequencies (bass);
- create a 3D sound;
- increase the volume of the voice among the remaining sounds in the movie;
- divided into several channels of mono recording.
Video: how to make a louder sound on a laptop
Increase the volume of headphones with programs or built-in utilities ( engineering menu) . Consider options for amplifying the sound in headphones on a computer (under Windows 10 and 7) and on an Android phone.
Especially often in Meizu and Xiaomi phones, the sound in the headphones / speaker is not loud enough. Before answering the question, how this problem can be corrected, let's consider the reasons for its appearance and solutions for each of them. Consider them separately for PCs and for mobile devices.
How to increase the volume of headphones on a computer (laptop)
Before any attempts to amplify the sound of headphones on the computer programmatically (and in any other way), it is necessary to check all the standard methods of increasing the volume, perhaps it was with them that there were problems. We divide conditionally the problems and their solution into technical (or directly related to the devices and their drivers) and software / system.
Causes related to Windows OS settings
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1. Inadequate volume of sound in the system mixer. To do this, click on the sound icon on the taskbar and open the mixer. Make sure that the desired volume is set for the desired software (browser, player, etc.), as well as the overall volume level for your device.
In Win8, open the "Start" page, then right-click in any free space and select "All applications":
Then, at the very end, find the "Control Panel":
In Win10, in order to go to the "Start" menu in the "Control Panel", you need to right-click on the "Start" button, then select "Control Panel":
In the "Control Panel", find and open the "Sound".
In the window that opens, go to the "Additional Features" tab and check the "Align Volume" check box at the bottom of the list. Click Apply.
Now the volume should be much higher.
3. Another option to solve the problem, if you do not want to tinker with each time system settings, - buying new headphones with lower resistance.
4. If you need to increase the volume of sound when playing specific audio / video files, then you can do it using special programs such as mp3gain, SoundForge, etc. You can easily find them and download them from official websites.
5. It's also easy to solve the problem with a quiet sound, you can use the built-in equalizer in the player that you use. This is the standard software of all players and easily allows you to amplify the sound, regardless of the set volume level in the system. The only downside can be in distortion of sound with strong amplification. But it is easy to solve, having corrected the levels of frequencies in the equalizer. .
6.
Use special programs to increase the volume in separate programs, for example, Sound Booster.
To do this, download and install the program from the developer site.
Then run the program and set the desired volume level:
7.
With the help of codec settings, such as K-LiteCodecPack.
In this case, when installing the codec, you will need to select the codec as the codec. ffdshowinstead of the proposed LAV and MPC player.
Then browse / listen to files using the selected Media Classic Player 'a. If the sound volume still does not suit you, then in the player when playing the file you will need to apply the ffdshow filter.
For this, the menu "Reproduction"
, select "Filters", then in the list, select ffdshow Audio Decoder.
Then in the opened window Properties Check the box for scrolling points "Volume" and «Mixer», and then check the item "Volume" In the main window and adjust the volume with the knob Master volume.
The only downside is that it only fits the MPC.
Technical causes or reasons related to devices and their drivers
Familiarize:
1.
The first most frequent the reason lies in the "loosened" connector of the sound card, that is, in poor contact between the headphone / speaker plug and the sound card connector. Most often this happens with old sound cards.
Decision: in this case, either change / solder the connector (you can also reassign it to the neighboring one), or think of how to fix the plug or wire so that it does not "stagger" in the connector.
2. Another reason is hidden in the problems with drivers for audio devices:
- Drivers could easily "fly off", or incorrectly installed.
Decision: reinstall drivers. - Also, the reason may be in the drivers themselves, the so-called "developer errors". They are usually fixed in newer versions of the drivers with the release of updates.
Decision: In this case, you can try to roll back the driver to the previous correctly working version and wait for the update to come out with the bugs fixed. Then update them after the patches are released. - Verify compatibility of the version installed drivers with your device. It is possible that you have installed an inappropriate driver.
Decision: reinstall the driver by downloading the appropriate version from the developer's site.
How to reinstall the driver?
To reinstall the drivers, you must first download from the official site a suitable for your OS compatible with your device driver version.
After that you need to do the following steps:
1.
Open the Control Panel.
3.
In the "Device Manager", open the item "Sound, game and video devices": 
4.
In this paragraph, right-click on the device you need and select the one you need from the drop-down list: 
If you just want to update the driver, then choose «Refresh». If you want to completely re-install them, then you better get them first. "Delete", then restart the PC and reinstall them.
After reinstalling / upgrading, be sure to note the presence / absence of exclamation marks next to your device in the " Device Manager ». The presence of such a sign indicates the presence of errors and driver conflicts. 
How to increase the volume of headphones on android
Frequently, users of smartphones and other devices running on Android, face the problem of quiet sound in the speakers, but do not know how to fix it. And it's quite easy to do this. We will go from the very simple ways to more complex ones. The easiest way to amplify the sound on Android is using the engineering menu. But it's not so easy to enter into new phones. If you do not know how to do this on your device, you can immediately go to the 2nd and the following ways of dragging the volume through the applications.
1) "Increase" the volume of headphones on the phone
Read more:
The simplest and trivial, but it some do not know or forget - by adjusting the volume in the sound settings in the system itself.
To do this, go to "Settings", then select "Sound", then from the menu, select "Volume" and adjust the volume for applications. 
2) Increase the volume with the application
Read more:
3) Increase the volume in the phone using the engineering menu
Read more:
Increase the volume in the phone using the engineering menu. You can enter the engineering menu through dialing the number using special codes. Different manufacturers have different, have this in mind. However, it is also worth noting that part versions of Android requires root rights to enter the engineering menu. These rights can be obtained different ways. The simplest of these is the Kingo app Android Root or Framaroot.
Instructions for rattling a smartphone or tablet using the example of Kingo Android Root:
⦁ Download mobile version program from the developer's site.
⦁ In the settings of your device, you can install applications from third-party sources.
⦁ Install and run the program.
⦁ In the main window, click the One click Root button.
⦁ Wait until the process is complete - the device will automatically reboot.
After that, you can start entering special codes.
Here is a short list of codes for the most popular manufacturers:
After entering the engineering menu, go to the section «Audio»:
Here you will see different settings: 
Setting values:
- Normal Mode - Settings section in the normal mode, when no devices are connected to the smartphone;
- Headset Mode - Headset mode, activated after connecting the headset or external speakers;
- LoudSpeaker Mode - loudspeaker mode, is activated when the speakerphone is switched on during a call when no other devices are connected to the smartphone;
- Headset_LoudSpeaker Mode - loudspeaker mode when the headset or speakers are connected, when you turn on the speakerphone;
- Speech Enhancement - the mode of telephone conversations in the normal mode of the smartphone, when no devices (headset, external speakers) are connected to it and not included speakerphone.
In the following sections, it is better not to change anything.
- Debug Info - what exactly this mode is intended for is unknown, most likely information on debugging;
- Speech Logger - is also not completely clear why it is needed. If you check the box Enable speech log, after the end of the conversation, the corresponding files are created in the root directory of the memory card. Their name and structure are as follows: Wed_Jun_2014__07_02_23.vm (Wednesday_July_2014__times 07_02_23.vm).
- Audio logger - Audio recording software that supports quick search, playback and saving.
Setting values:
- Sip - settings for Internet calls;
- Mic - microphone sensitivity settings;
- Sph - settings of the spoken speaker (the one that is applied near the ears);
- Sph2 - settings of the second speaker (I do not have it);
- Sid - skip, if you change these parameters during the negotiations on your smartphone or tablet, you can hear yourself instead of the interlocutor;
- Media - Adjust the volume of multimedia;
- Ring - Adjust the volume of the incoming call;
- FMR - Adjust the volume of the FM radio.
Under the item of choice of settings, you can select the volume level from 0 to 6. Each of them has a selection range from 0 to 255. 
Important!
Before making any changes, first write down the initial values somewhere in case something goes wrong.
4) By editing the file mixer_path.xml
Read more:
By editing the file mixer_path.xml.
This option implies that the user Root has the rights that give full access to the device. More details on how to get them we have considered in the previous method.
We also need a file manager, for example, one of the following three:
- Root Browser;
- Es conductor;
- Amaze.
This option in case the file structure differs from that considered in option 1.
Important!
Before making any changes, it is recommended to make backup files.
How to increase the volume on devices running iOS
Many users of the iPhone have repeatedly wanted to increase the volume level of their device, but far from being able to do it. And it's not so difficult to do it. Below we will consider the most common and proven methods.
Option 2:
The variant is more complicated. It consists in changing the configuration files configuration - Jailbreak*. It can be performed in three ways.
* an operation that allows you to access the file system, the analog of obtaining Root rights to Android.
1 way.
Not all users of iPhones know that in some European countries there is a limit on the volume of sound of mobile devices. Therefore, to make our iPhone work louder, we need to remove this restriction.
To do this you need:
- Go to the root of the iPhone drive.
- Then open the following directory:
in the firmware 4.h.h. - System / Library / PrivateFrameworks / Celistial.framework
in firmware 5.h.h. - System / Library / PrivateFrameworks / Media Toolbox.framework
in the firmware 6.x.x. - System / Library / Frameworks / MediaTooblox.framework
in the firmware 7.h.h. - System / Library / Frameworks / MediaTooblox.framework
in the firmware 8.h.h. - System / Library / Frameworks / MediaTooblox.framework - Then open the file RegionalVolumeLimits.plist.
Attention! If on your device you did not find such a file, it means that there are no restrictions on your device. Restrictions are only on iPhones made in some countries of Europe. Find out where it came from is your smartphone you can along the way "Settings" -\u003e "General" -\u003e "About this device" -\u003e "Model" by the last two characters, for example -\u003e MB496RS / A. In this case it will be Rs.
A short list of codes for all countries:
AB - Saudi Arabia, United Arab Emirates, Qatar, Jordan, Egypt
AE - Saudi Arabia, United Arab Emirates, Qatar
B - United Kingdom and Ireland
BZ - Brazil
C - Canada
CH - PRC
CM - Hungary
CS - Slovakia, Czech Republic
CZ - Czech Republic
D - Germany
DN - Austria, Germany, Netherlands
E - Mexico
EE - Estonia
EL - Latvia
ER - Ireland
F - France
FB - France, Luxembourg
FD - Austria, Liechtenstein, Switzerland
GB - Greece
GR - Greece
HB - Israel
HN - India
IP - Italy
J - Japan
IP - Portugal, Italy
ID - Indonesia
KH - South Korea, China
KN - Denmark and Norway
KS - Finland and Sweden
LA - Guatemala, Honduras, Colombia, Peru, El Salvador, Ecuador
LE - Argentina
LL - United States
LP - Poland
LT - Lithuania
LV - Latvia
LZ - Paraguay, Chile, Uruguay
MG - Hungary
MY - Malaysia
NF - Belgium, France
PA - Indonesia
PL - Poland
PO - Portugal
PP - Philippines
RO - Romania
RR - Russia, Moldova
RS - United States
SL - Slovakia
SO - South Africa
T - Italy
TA - Taiwan
TH - Thailand
TU - Turkey
X - Australia, New Zealand
Y - Spain
ZA - Singapore
ZP - Hong Kong and Macao
After you figured out the country-manufacturer of your iPhone, then in the opened file you need to find this country. After that it is necessary to change the value opposite this country to the desired one. The maximum value is 1.2, but there is a possibility of distortion of the sound. Therefore, it is recommended to set the value to 1.0. After the done changes we save everything.
Method 2.
- Open the root folder file system iOS.
- We proceed along the following paths:
/System/Library/Frameworks/MediaToolbox.framework/Nxx/ (where xx are two numbers that differentiate depending on the device model)
/System/Library/Frameworks/MediaToolbox.framework/default - In both folders there is a file SystemSoundMaximumVolume.plist. It's in the tab Default you must change the values to the following:
Default: 0.99;
Headset: 0.8;
LineOut: 0,8. - After all the changes, we save everything.
Now go to the folder / var / mobile / Library / Preferences / and find the file com.apple.celestial.plist.
Attention! On some devices this file may also be absent, it all also depends on the country of manufacture of the device.
If such a file exists, then in the VolumeLimits tab you need to set both values to 1.2.
Save the changes and reboot the device.
Method 3.
In this method, you modify the files using the Flex application. Below in the pictures you can see the instruction how to do it:
4 option:
There is also a small trick for those who are not going to "crack" their smartphone - in order to increase the volume of the sound simply turn off the equalizer. Equalizer, as it turned out, does not amplify any frequencies, but only reduces others in such a way that, for example, low frequencies, if you wanted to raise their level, sound louder than other frequencies.
Effects
- It is worthwhile to understand that manufacturers do not just set this or that loudness threshold for their device and any excessive increase in loudness leads to faster deterioration of the speaker, and sometimes to its breakdown.
- It is worthwhile to understand that there are earphones quietly playing in your smartphone then it may not be in it,. Should be or for such headphones. This applies to both the computer and the phone.
- With regards to smartphones. When you increase the volume, you increase the power of the source. Try to listen to music at an excessively high volume only in the headphones (if they were previously quiet) and do not turn it on through the speaker. This usually leads to sad consequences.
And what do you think about it? Write in the comments if you agree with me or disagree 🙂
This can be interesting:
Headphones for hunting, amplifying sound - Special earphones with active noise reduction. There are active and passive headphones, differ in purpose. The active headphones have a built-in microphone and speaker for communicating with other arrows or hunters and a noise reduction system that allows you to cut off sounds annoying the ear. Passive headphones do not miss any sounds, they are good first of all on the shooting range, where there is no need for a voice contact between the participants.
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