Take the two earphones out of the box and turn them off by pressing and holding them until only the red light comes on. Then press and hold both earphones until the red-white light flashes at the same time, keep holding until the red-white light turns on for the second time. This way the earphones are paired with each other. Then put the earphones in the box. Activate your device’s bluetooth while the headphones are in the box. Take the headphones out of the box and when the headphones appear in the bluetooth search section, click and connect. All you have to do is to increase the volume of your device and enjoy the quality sound.