MP3 FM transmitter bluetooth free hands: It will Be able to listen to the songs of his MP3 in the radio of his car and in addition it will be able to speak for telephone across the radio. (It does not import the type of radio) The function of the FM transmitter: He reads files MP3/WMA from port USB, memory card and it transmits it to the radio FM of the car. The function bluetooth free hands: It will Be able to speak for telephone listening to the sound across the radio of the car. (It brings option of so called private road). Generation accepts Bluetooh 3 ª 2.4 G. It can listen to the music that has recorded in his telephone in the radio of the car across the bluetooh. Screen SMELL color It shows on screen the number that calls / Option to answer automatically / Repeats calls Memory hospitalizes of 1 GB and groove for card SD. Bluetooth 2.0 Files MP3/WMA. Transmission for port USB. Gone out to earphones I give the orders distantly with the operative one of Selecting song for number, it selects the frequency, control of volume, adjustments of ecualizador. The control distantly has 21 keys. It can be folded.