Listen to your MP3 music on your car audio system or home hi-fi Connect to your USB (Universal Serial Bus) device or MP3 player & send music to your FM radio Power by your cigarette lighter or USB (Universal Serial Bus) both included Equilisation feature built in rock classic normal jazz or bass Transmits on full spectrum FM frequencies 88.1-107.9 M Hz Standard USB (Universal Serial Bus) input terminal & 3.5mm stereo port