Trekstor MP3-RadioStation f.ox FM Transmitter Included - MP3-RadioStation f.ox, line-in cable, spare fuse, operating instructions Transmit music from any MP3 player to a car radio - Line-in connection for external sound sources such as MP3 or CD player via 3.5 mm jack socket Transmit music from USB sticks to the car radio - USB connection for most Flash-based USB sticks Audio formats directly playable from USB stick - MP3, WMA Compatible with all standard car radios