Car FM transmitter adapted to the cup space. It is powered from the cigarette lighter socket. It allows you to play music from smartphones (connected via blutooth) via FM on the car radio. Useful in cars not equipped with Bluetooth module or Aux-in input. Music can be also played from USB devices or from an SD memory card. It is also possible to use as a speakerphone. The built-in USB socket allows you to charge devices. Additionally, it has two cigarette lighter sockets.