USB Car MP3/WMA FM Modulator Player W/Audio Input Use your ordinary USB flash drive and this clever device to play your favourite MP3 files in the car! Instant car MP3 player! The unit is the size of a normal car cigarette lighter plug and is fitted with a USB socket that will accept a standard USB drive. The combination allows you to play your MP3 files by transmitting them to your car's FM radio! You can also convert your ordinary portable CD, DVD or MP3 player into a Car MP3 player by plugging it into this unit!