Technical Parameters:
1. Bluetooth V4.0 + EDR, the farthest transmission distance of 10m
2. Support Bluetooth handsfree call function
3. Support Bluetooth A2DP stereo
4. Frequency: 2.4GHz
5. Through CE, FCC, BQB certification
6. 3.5mm stereo input jack
7. sleep mode, energy saving
8. Power: Use a mini USB cable to charge
9. Working hours: 2-3 hours

Charging:
1. Connect one end of the supplied USB cable to the USB input connector of this Bluetooth music receiver
2. Connect the other end of the USB cable to your computer, laptop, or USB power converter, and the Bluetooth music receiver's LED turns red to indicate that it is charging.
3 When the charge is over, the red LED will be off and up to 8 hours of play time

Pair:
1. Enter the pairing mode, press and hold the switch button for 5 seconds until the red and blue LED lights flash at the same time
2. Locate this Bluetooth music receiver on your phone or related transmitter
3. When the device is mated and the connection is successful, the Bluetooth music receiver's LED turns blue and blinks slowly
4. Once the pairing is successful, the device can turn off the power and the next reconnection does not need to be reconfigured