Working Manual 1. Connect it with the audio port through the 3.5mmAUXplug. 2. Connect it with the power port through the USB plug. 3. Turn on the mobile phone Bluetooth, find 'EB01', click connect, the blue LED lights up intermittently (time interval 10-20S) Wide compatibility： Bluetooth device：smart phone/tablet/laptop Audio device：car radio/home stereo system Remarks： 1.If there is noise when the product is plugged into the USB socket of the center console, please try to insert the USB plugin to the power supply of cigarette lighter. The reason is possibly that your center console does not have a ground wire, which may cause static electricity interference. 2.The pairing mode lasts for about only 5 minutes. 5 minutes later, the LED light enters standby mode with slow flashing. Please shutoff and restart the product if you need to enter the pairing mode. Built-in LED It is equipped with LED indicator light. If there is no Bluetooth connection or the connection is abnormal after the car Bluetooth adapter is connected with the power, the LED light will flash. After the device is successfully connected with the Bluetooth, the blue light slowly flashes (time interval 10-20S) No battery necessary-automatic starting It is not necessary to charge it. After it was plugged into the USB port with power supply and the car engine was started, the car Bluetooth adapter will automatically pair with the previously paired device. It is convenient and simple. The supported maximum transmission distance is 10 meters.Scalable cable body The spiral auxiliary cable is made of soft PVC material Its natural length is 40mm and the maximum length can reach 1.2M.