Br21 Device V1.00 Usb Device ((top)) -

If your BR21 device is a programming cable for a radio, this is the most likely culprit.

💡 : Many of these devices are marketed as "Bluetooth Dongles" but are actually USB Sound Cards that receive Bluetooth audio. They do not add Bluetooth functionality to your PC for peripherals like mice or keyboards; they only work for audio streaming. br21 device v1.00 usb device