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).
Check and ensure "JieLi BR21" is set as both the Default Output and Default Input device. Official Resources jieli br21 driver verified
If it appears with a yellow exclamation mark, right-click it, select , and choose Search automatically for drivers . 2. Linux / Ubuntu Verification Linux users can verify the device using the terminal: Run lsusb to see if the Jieli Technology ID appears. Windows typically uses the Generic USB Audio Driver