1. Plug the Bluetooth dongle into the USB port of the player with USB audio profile
2. Turn on the player the red LED of the dongle shall be flashing
3. Turn on the Bluetooth player search for ID: BT-173 than match
4. If successfully paired the content of the Bluetooth player stream through to the USB audio player
5. Power supply: USB 5V
6. Support A2DP AVRCP AVDTP HFP and HSP
7. Output: USB port 3.5mm audio interface
8. Receiving distance: not less than 10m
9. Product material: ABS+metal
10. Product size: 5.8cm x 2.2cm x 1.1cm