To pair to your Bluetooth enabled mobile phone: When the unit is off, press and hold the small black power button at the end of the unit. Hold the button until you see a RED AND BLUE light flashing. It normally takes around 5-8 seconds from off. Do not let go when you see the blue light. You will also hear a DuDu tone when the unit enters pairing mode. On your phone, search and attempt to pair to the device, when the device is flashing red and blue. If requested the pairing code will be 0000 and you should set the phone to auto pair to the device.