1X Universal All Channel FM Transmitter w/ USB Port, Black 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 All frequency tuning allows endless selection of radio frequencies from 88.1 to 107.9 MHz with an increment of 0.1 MHz Just tune your car radio into any unused FM channel. Then adjust the FM Transmitter to the same radio frequency. Plug FM Transmitters into any 3.5 mm output socket and then its done. Powered by vehicle cigarette lighter adapter or 2 x AAA battery May be charged through the USB port Frequency range: 88.1 - 107.9 MHz For best sound performance, please set your MP3 players volume level to MEDIUM. Then use your car stereos 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 Accessory ONLY; MP3 player / cell phone/ battery not included.