Audio Cuts Out Intermittently, Choppy, Unstable Connections, Short Working Range. How to fix?

If you're experiencing intermittent Audio Cuts, please try to resolve the issues with the methods below:

Method 1: Clear Pairing History of your headphone and pair them again (Clear Pairing History is NOT turn on/off).

Method 2: Clear away any potential Wireless Interference Devices.
Other wireless devices in the vicinity of this set may negatively affect the working range. This "source of interference" can be a WiFi router, a TV box, or even just another Bluetooth device.To solve this issue, simply move either the source of interference away; that ought to clear the problem.

Method 3: Avoid Physical Objects.
Walls, solid materials, or even human bodies can all become "obstacles" that negatively affect the Bluetooth device's range. Please try clearing the space between the dongle and headphone, and see if that helps.

Method 4: Test with other devices (if possible).
If the three methods above still can not solve it, as a diagnostic test, please refer to this link and pair the headphone with another sound source device like a smart phone (if possible), to see how the headphone range and connection work, we would like replace the dongle for you if it will turns out to be the dongle reason, in this case, please fill in the following form to proceed:
https://avantree.com/troubleshooting-verification/always-disconnected-form