1. Support Bluetooth 4.0 + EDR agreement
2. Support A2DP, AVRCP, HFP, HSP
3. 8-10m working distance
4. Plug the Bluetooth dongle into the USB socket of the device
5. Turn on the audio device, the blue LED of the dongle shall be flashing
6. Turn on the Bluetooth player, search for ID: BT-DONGLE, then match
7. If successfully paired, the content in Bluetooth player shall stream through the USB audio device
8. Product material: metal
9. Product size: 36mm x 13mm x 5mm