This is normal for the BR21. It acts as a , not a Bluetooth radio. You pair your headphones to the dongle , not through the Windows Bluetooth menu. Low Volume / No Sound

For firmware updates or technical datasheets, the official manufacturer is You can find their technical repositories and update tools on the Jieli-Tech GitHub or through authorized distributors like Axtekic Support .

Windows typically uses the Generic USB Audio Driver for Jieli chips. Plug the device into a USB 2.0 or 3.0 port. Open (Right-click Start > Device Manager).

If your BR21 is built into a digital mixer, ensure the or "PC" button on your hardware is pressed. Without this hardware toggle, the driver will not initialize correctly in your DAW or recording software. Troubleshooting Common Issues Potential Solution Device not seen by Windows

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Jieli Br21 Driver Verified |work| — Validated & Official

This is normal for the BR21. It acts as a , not a Bluetooth radio. You pair your headphones to the dongle , not through the Windows Bluetooth menu. Low Volume / No Sound

Windows typically uses the Generic USB Audio Driver for Jieli chips. Plug the device into a USB 2.0 or 3.0 port. Open (Right-click Start > Device Manager). This is normal for the BR21