Insten LCD FM Transmitter Adapter for 16GB/32GB/64GB iPhone 3G/4S/iPod touch 4G Apple iPod, iPhone, or iPad are registered trademarks of Apple, Inc. Products are Apple compatible and not endorsed by Apple, Inc. Compatible With iPhone 3G/iPhone 4S - AT&T, Sprint, Version 16GB 32GB 64GB/iPod touch 4 G Broadcast music from your iPod, PDA, MP3 or CD player, and even portable DVD player with this all channel universal FM transmitter. Transmits stereo quality sound from your portable music player to your car/home FM radio. For best sound performance, please set your MP3 player's volume level to MEDIUM. Then use your car stereo's volume control to adjust the output level. Operating Range: up to 16.4 feet/5 meters. Optimal distance - 10 feet/3 meters. Easy to read LCD frequency display. Fits standard USB connections. Color: Black.MP3 Player and AAA battery not included. MP3 Player and AAA battery not included.