Bluetooth 5.0 Transmitter Receiver Transmitter 2in1 Aux Audio Adapter Headphones ARTICLE DESCRIPTION Can be used as transmitter or reciever Compatible with all smartphones Turn a non-Bluetooth TV into a Bluetooth transmitter. Powerful Bluetooth IC Stronger compatibility Receiver mode: ideal for music streaming sound systems at home or in the car AptX audio codec for a richer and deeper sound experience OPERATING INSTRUCTIONS RX: Receiver unit (e.g. play music from car radio). Connect or charge the adapter to the USB port Connect the aux cable from the receiver port of the adapter (RX) to the device Turn on Bluetooth on your smartphone and pair it with the adapter TX: Transmitter unit (e.g. transfer sound from TV to your Bluetooth headphones) (Long press and hold the power button to turn on the device and launch the Bluetooth device that needs to be paired. Press and hold "+" and "-" on the receiver at the same time to switch to transmit mode.Now it will automatically connect to the opened Bluetooth device). Connect the adapter to the USB port or charge it. Connect the aux cable from the transmitter port of the adapter (TX) to the device. Turn on the device by pressing and holding the power button for 3 seconds. Turn on your Bluetooth headphones and leave them in pairing mode. (Place the headphones near the adapter and they will pair wirelessly. If this does not work, change the mode as below and repeat the process again.) Enjoy the music or movie Change Mode :To change the mode, press and hold the " - " and " + " button. INCLUDED IN DELIVERY 1x Bluetooth adapter receiver and transmitter 1x Aux connector 1x charging cable 1x user manual