Car USB-MP3 Transmitter MJH-05M Wireless MP3 Player & FM Modulator. Play all your Audio Device's through your Car Stereo!! Product name: Car USB-MP3 Transmitter Model No.: MJH-05M (without flash memory) This is a FM Transmitter which could upgrade your FM Car Stereo to an MP3 player. Just insert a USB Flash Drive or a USB Card Reader with Flash Card with MP3 files into this transmitter, Or connect with your MP3, iPod, CD player or other audio device via the audio cable, then tune your radio to the appropriate frequency and press play, you could enjoy wonderful music from the car stereo at once. Features: Built-in FM transmitter Read MP3 file from the USB flash disk directly and broadcast through the car FM tuner. LINE-IN function that enables you to enjoy music from the external audio device such as CD, MD player. Four functional keys: PLAY/PAUSE,PREV/V-,NEXT/V+ and CH. 7 preset channels within 87.7-88.9 MHz. Car cigar socket power supply USB1.1 interface with high transfer speed 7 LEDs that indicate 7 preset channels Performance: For Flash Memory / Memory stick (USB Only) Plug the MP3 Player FM Modulator into car smoke light jack. Plug your Flash Memory into FM Modulator's USB Port. Select one of the 7 FM Modulator Presets that a local radio station is not broadcasting on.(87.7 ,87.9 ,88.1 ,88.3 ,88.5 ,88.7 ,88.9 MHZ) Tune your car stereo to the same FM Frequency as the FM Modulator. Press the Play Button on the FM Modulator. Music/Audio transmits to vehicle's stereo system. For use with MP3, iPod, CD, or DVD Player via the AUX port Plug FM Modulator into into car smoke light jack. Using the audio cable, plug your MP3, CD, DVD Player or other audio device into the FM Modulator's stereo jack . Select one of the 7 FM Modulator Presets that a local radio station is not broadcasting on.(87.7 ,87.9 ,88.1 ,88.3 ,88.5 ,88.7 ,88.9 MHZ) Tune your car stereo to the same FM Frequency as the FM Modulator. Press the Play Button on the FM Modulator. Music/Audio transmits to vehicle's stereo system. NOTICES: 1. It is normal that the product becomes a bit hot for long time playing. It will not influence the service life of the product. 2. If the work LED is not on, please check if the lighter holder is well set, with rustiness or blowout. If not, Fuse may burn due to times of pull and plug, please check and replace fuse. The attached picture is for your information 3. For better quality of the sound, please keep away from the stations with strong signal while choosing the frequency. 4. Pull the player out from the lighter first when starting or lighting