Description: In Transmitter mode, turn a non-Bluetooth TV, PC, CD player, for iPod, MP3 / MP4 into Bluetooth transmitter. Receiver mode: Ideal for home or vehicle music streaming sound system. 2. Connect this bluetooth audio receiver to your line-in or aux input on your speakers, pair it to your bluetooth device, and enjoy the wireless music revolution. Whether you want Bluetooth convenience in your car, through your home theater system, in your kitchen, bathroom, or bedroom, etc. 4. AptX audio codec for a richer and deeper sound experience. Listening to CD-like audio quality at no compromise. Easy operation, 3.5mm Male to Male Audio Connector or 3.5mm Male to Male Audio Cable to connect the speakers and receiver. Powerful bluetooth IC, More stronger compatibility. 7. Powered by built-in rechargeable li-ion battery via mini USB port, long working hours and low consumption. (Mini USB cable included) 8. You can play music through your car and answer phone call through the built-in Microphone. Specifications: Material: ABS Colour: Black Bluetooth version: V5.0+EDR Bluetooth protocol: AD2P Working distance: 10 meters Function: Bluetooth audio receiver / Bluetooth audio transmitter Package Included: USB Bluetooth Audio Adapter*1