In Car Bluetooth transmitter Play your music or answer phone calls through your car speakers with this 12v Bluetooth transmitter Built in microphone enables you to make calls and clearly speak/listen through the car sound system No wiring, simply plug into a 12v socket, select FM radio and tune in it in and away you go Compatible with iPhone, android and most Bluetooth enabled mobile devices Built in USB charging socket Easy to read LCD display No batteries required FM frequencies between 87.6 to 107.9MHz. If you do not have Bluetooth on your handset, you can still listen to your music and answer calls with this device, as we also supply a wire cable to connect a phone to the transmitter. Compatible with iPhone, android and most Bluetooth enabled mobile devices. Made from plastic. Size H9.4, W4.6, D3cm. Weight 0.36kg.