Description:3.5mm car bluetooth receiver, Aux port bluetooth audio music speaker adapter usb, bluetooth converter.Charger:1. Use the provided USB cable to connect to the mini-usb input interface of this Bluetooth receiver2. Link the end of the line to your, laptop or USB device to display the light change of the AC LED computer TV Bluetooth music reception, and it is charging.3. When the charging is over, the red LED light is turned on, and it can provide 8 hours of playing time when fully charged.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 time2. Find this Bluetooth receiver on the transmitter associated with your mobile phone3. At this time, the device is paired and connected. After success, the LED light of the Bluetooth receiver turns blue and the connection continues4. For some devices that require a pairing password, please enter '0000'5. If the pairing is successful, the device can be turned off, and the device will not be paired next time when it is connectedIf paired:1. Start: Long press the switch button on the Bluetooth receiver for 3 seconds, until the LED lights up and flashes to start2. Shut down: Long press the switch button 5, the red LED light will be on at this time, and then turn off.