"Jieli BR21" primarily refers to the AC692N (BR21) series of Bluetooth audio system-on-chips (SoC) manufactured by Zhuhai Jieli Technology
: If the device appears as a "Storage Device" or "CD Drive" in Windows, it may be in a driver-installation mode. Look for an "install.exe" within that drive or use a tool like usb_modeswitch on Linux. jieli br21 driver exclusive
When properly driven, the BR21 provides several core "full feature" capabilities: "Jieli BR21" primarily refers to the AC692N (BR21)