OEM Auto Car Charger Adapter + FM Transmitter For iPhone 4 4S 4G 3G 3GS iPod touch Compact and stylish Transmits stereo quality sound from your portable music player to your car FM radio Blue light LCD display it features a bluelight digital display so you can see exactly what frequency you're transmitting at! With car charger, Powered by vehicle cigarette lighter adapter and it can charge iPod & iPhone | 41*26*17mm