Please see Fig. Insert theemitter audio cable into thw AUDIO-OUT socket of the electronic device and turn the function switch of the emitter to the "Wireless Headphone" position then the emitter indicator shine.
Built in the battery on the emitter and the receiver,turn the receiver power switch switch to the "ON" position.the indicator of the headphone go on. Put the volume control to suitable position.Press the "RESET" button adjust the tiny modulation on the receiver(Headphone) till getting a hest effect