3.5mm FM Transmitter Car Charger Adapter For HTC HD7 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. Package includes: All-in-1 FM Transmitter; 3.5mm male to male audio cable; User Manual. 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. High quality silicon gel on the back and sides of holder to protect the device from being damaged. 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).