For No USB port Speakers: Supply power to the device by connecting the charger with a 5 V USB interface, then connect the Speaker’s AUX port with the audio cable.
For Speakers with USB port: Connect the device with the speaker’s USB port directly, then connect the Speaker’s AUX port with the audio cable.
Turn on the Bluetooth function of the computer, mobile, or another device that has Bluetooth function, search for the H-163 device to connect, and input: 0000 for matching when the device is in the matching mode. After matching success, the indicator light turns to twinkle slowly. Then you can use it for iPhone and other Bluetooth transmitters playing the music. and output rates: 44.1KHZ and 48KHZ.