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1. Try another pair of earphones

The first step is to get a pair of perfectly working earphones and connect them to your device. If they are working fine, then you know that the problem truly lies with your headset. In this case, follow the tips below for fixing wired and Bluetooth headphones. But if the functioning headset also starts playing only in one ear, you need to check your device’s audio settings.

2. Restart the device

Another simple fix you may want to try is restarting your device. This may prove especially helpful if the issue occurs right after a software update.

After restarting your phone or PC, check if you can hear out of both earbuds. But if the headset is still playing in only one ear, start checking your device’s audio settings.

3. Check the settings

Headsets may play only in one ear depending on your audio settings. So check your audio properties and make sure that the mono option is turned off.

In addition, make sure that voice levels are balanced on both earbuds. You can check this by clicking on the Sounds icon on your computer, going to Levels, and then selecting Balance. The voice levels must be equal on both sides of your headset.

4. Clean the headphone jack

The lint and dirt can get trapped in the headphone jack and affect the audio output.

Please make sure the one-key mute button are fully opened as attachment shows, and the volume adjusting wheel can also adjust the volume of mic. Please make sure your audio device port has no faulty, The problem may not be your headphones. It could be a faulty jack on your audio device. To test to see if this is the case, plug your headphones in another device. If your headphones work, then you know the audio jack on the previous audio device is bad.

1. )please make sure whether the Audio cord correctly plugged in?Is the cord fully plugged into the audio device? Please double check to be sure that the cord is completely plugged into your audio device. If you are hearing audio from only one ear, sometimes this indicated the headphone jack is only pushed in halfway.

2.) Is the volume muted?

Be sure the mute button on either your headphones or the audio device is not muted.

1) Please plug the charging cable into headphones, and turn off the headphones.

2) Turn on the headphones again, keep press power button until the red and blue rights flash, then headphones are in pairing mode.

3) Find the headphones on your phone, paring them again.

(1) When the headset is used in third-party software, more input and output settings are required for better use. If it is set and still cannot be used normally, there may be compatibility.

(2) The sound quality of the headset may be caused by these reasons:

a) Bluetooth connection is unstable.

b) The signal of the environment is not good.

c) This headset might be a defective product.

(3) You can try to clear the Bluetooth pairing record of the headset(Pressing MFB(Power button) and the volume together for 7 seconds till pink LED flash twice at the same time), and then connect again to see if the problem is resolved.

1. Please try to clear your laptop's bluetooth connection first, make sure the headset doesn't connect with your laptop (or close your laptop's bluetooth)

2. Reopen your phone's bluetooth to search again

1.Make sure the headphone is compatible

2.Make devices are in close proximity to connect.

3.checking manufacturer’s recommendation

4.Read the user manual or turn them off and on again

5.Move away from Wi-Fi router

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