Handsfree Car FM Transmitter ( built-in battery ) 

Handsfree Car FM Transmitter for iPhone 4S & iPod

Car speaker phone+Portable Handsfree+FM Music Transmitter

Features
1. Plays music from your phone over the Radio
2. Supports 200 channels from 87.9MHz to 107.9 MHz
3. Memorizes up to 4 channels
4. Transmits music wirelessly to any FM radio in Stereo
5. Mutes the music during calls
6. Built in Lithium battery
7. The width and depth is same as iPhone 3G
8. Stereo headphone jack (3.5mm stereo connector for normal headphones)
9. Built-in high quality microphone
10. Stereo sound for high quality audio
11. Designed to transmit audio (MP3/phone calls) to any FM radio (car/home),playing MP3 music stored in your

mobile phone through your car/home stereo
12. Automatically turns off sound coming from your car stereo when a call is received or made,channels sound through

your car speakers
13. Lower power consumption

Compatible with:
Work for iPhone 4S, iPhone 4, iPhone 3GS, iPhone 3G, iPod nano 5th generation ,all iPod models, Cellphone, MP3 & MP4 Players, and any device that has a 3.5mm audio socket.