If you feel that the left and right audio levels on your Q31i are inconsistent, it is usually related to the balance settings on your device or app, environmental interference, the audio codec, or the audio source itself. Most cases can be resolved by following the steps below in order.

Before You Start: Please make sure the headphone is powered on and connected to a device.

Troubleshooting Steps:

1. Check the balance settings:

1. Phone/Computer: Go to "Settings" > "Sound/Audio" > check whether the "Left/Right balance" is centered (on some devices this may be under "Accessibility").

2. Media apps: Some music or video apps have their own channel balance option—make sure it is set to center.

2. Reduce interference: While using the headphone, stay away from interference sources such as Wi-Fi routers and microwaves. If possible, test the headphone in a quiet environment with minimal wireless interference to rule out environmental factors.

3. Switch the audio codec: Go to the phone's Developer options and adjust the Bluetooth audio codec (such as SBC or AAC). Some codecs may cause compatibility issues that lead to inconsistent left/right audio.

4. Change the audio content: Try playing different songs or videos to rule out a channel issue in a single audio source.

If you encounter any other issues or your issue has not been resolved, please contact us for further assistance.