Features:1) Universal wireless stereo FM transmitter compatible with any any radio2) You can play the music with your CD, MP3, DVD, VCD and USB flash disk3) 3.6 channels for your choiceModel: MT-CM02, MT-CM03 (built-in MP3 format decoding chips)Operating distance: 3-12mPower input: DC 12VFrequency range: 20Hz - 15kHz Audio source: MT-CM02: CD, VCD, DVD, MD, MP3MT-CM03: USB flash disk producing area:China payment:T/T