Jieli Br21 Driver -

A compact Bluetooth 5.0 audio receiver module commonly used to add wireless audio to speakers, car stereos, and DIY audio projects. Typical chipset: Jieli (e.g., JL AC692x family). This guide covers drivers, pairing, wiring, and troubleshooting.

For most users on Windows 10 or 11, the "driver" is built into the operating system. Jieli Br21 Driver