My car has a Bosesoundsystem, with a radio which does not allow connection of a USB stick. The mumbi FM transmitter detects all my songs on the USB stick and play them clean. Easy to install, simply plug into the cigarette lighter, choose an area occupied by any radio station frequency, the same program on the car radio, USB flash drive, SD card or mobile phone at mumbi connect and it is already going ;-) The mumbi remembers the location of the playlist when it is removed from the cigarette lighter and is later put back into operation.