Flattest Speakers on the Market Drown Out Snoring, Tinnitus, Construction and More! Insert the USB port into the headset, and then connect the USB port of the USB data cable to the computer. At this time, the LED light will turn red. When the LED light turns blue, it means that the Bluetooth hat headset is fully charged, please pull out the data cable. Power on: Press the power button for 2-3 seconds, the blue and red LED lights of the Bluetooth headset will flash alternately. Shutdown: In the power-on state, press the power button for 2-3 seconds, when the red LED flashes 3 times, the red light turns, and the Bluetooth headset is turned. Bluetooth hat Bluetooth connection instructions: Power on and Bluetooth connection Press the power button for 2-3 seconds, the red and blue lights of the LED light flash alternately, turn on the Bluetooth of the mobile phone, and search for the Bluetooth name BT-03Sfor pairing. If the pairing is successful, the blue LED will flash slowly. If the password is set to 0000. Automatic pairing After the first pairing is successful, the next time you play the Bluetooth headset and mobile phone Bluetooth, it will be automatically connected, and there is no need to search for the connection again. Pause and play When playing music, press the power button once for the pause function, and press it again for the play function. When the mobile phone calls, press the power button once to answer the function, and when the mobile phone is talking, press the power button once to hang up the function. When the mobile phone is connected, press the power button twice to replay the call function. Long press the volume minus -is the volume down, short press the volume minus -is the previous song. Long press the volume plus +to increase the volume, and short press the volume plus +to enter the next song.