FM Transmitter + Car Charger for iPhone? 3GS iPod Touch? 4G FM Frequency 88.1 - 107.9 MHz. Input: DC 12V,vehicle power. USB output: 5V,1A. Frequency: 20Hz - 16 KHz. Effective Distance: &lt; 5m (16.40 ft). Broadcast music from your iPod, PDA, MP3 or CD player, and even portable DVD player with this all-in-1 FM transmitter. If you want to listen to digital music simply place your iPod or MP3 player onto the holder, tune to any FM 88.1 - 107.9 MHz station and enjoy crisp, clear audio. Black design. Suitable for all MP3 players,such as iPhone/iPod/Zuen/Creative Zen on all cars. Flexible goose pipe with rotation prevention design. Holder holds MP3 player in place. Type A USB socket for charging mobile phone,GPS,and other devices. LCD display with orange backlight. Removable stoppers prevent device from being dropped. High quality silicon gel on the back and sides of holder to protect the device from being damaged. Package includes: All-in-1 FM Transmitter; 3.5mm male to male audio cable; User Manual. Apple iPod?, iPhone?, or iPad? are registered trademarks of Apple, Inc. Products are Apple compatible and not endorsed by Apple, Inc.