For developers, "exclusive" access to the BR21's capabilities is handled through Jieli’s specific Jieli BR21 Bluetooth dongle shown as storage device
The BR21 belongs to a series of low-cost system-on-chips (SoCs) developed by ZhuHai JieLi Technology jieli br21 driver exclusive
For developers or enthusiasts looking for "exclusive" software, JieLi provides specific utilities for chip management: JL USB Update Tool: Used to flash or upgrade firmware on chips including the BR21, BR17, and AC692N BT_Config_Tools: jieli br21 driver exclusive
using the operating system's built-in USB Audio Class drivers. jieli br21 driver exclusive