Wireless 4 Channels FM Transmitter for any mp3 player, iPod, VCD DVD player, PDA, and notebook PC Convert sound from any mp3 player, iPod, VCD player, DVD player, PDA, and notebook PC to FM signal that your car or home radio can receive. Easy to use, simply plug the transmitter into the cigarette lighter jack, connect to the mp3 player via the earphone jack, and then auto-scan the car radio to one of the 4 channels of your choice! Support 4 selectable frequencies to avoid conflicts with local stations;Transmit up to 30 meters (100 feet);No static and virtually no interference by using digital PLL and RF amplifying techniques (Japanese Core) for Ultra-sounds quality Specification:Frequency response: 20Hz - 15kHz;Power consumption: ~50mA; Selectable Frequencies: 4 channels (106.7MHz, 107.1MHz, 107.5MHz? 107.9MHz);System on a chip digital PPL synthesis technologies Full Stereo Playback;No cable! Play music wirelessly in your car! Package Content: (1)FM Transmitter; (2)Car Charger; (3)English User Guide