SmartEra&reg; High Quality USB Female to 3.5mm Jack Male Audio Converter Adapter (Black) High Fidelity. Anti-interference. Good Signal. USB 2.0 female connect the Flash Disk, can read the mp3 form Flash Disk. 3.5mm male plug in the car AUX port There are car audio decoding function can be directly inserted U disk adapter cable through which songs to play U disk car stereo. Use for vehicle navigation, vehicular audio.