You can listen to your music in your car through the FM radio with the Multi-Channel Audio FM Transmitter. Multi-Channel FM Transmitter transmits music from your to your car or home FM radio so you can listen to your music through the car or home speakers. Simply, plug the FM Transmitter into your - tune your radio to a radio station with weak or no signal, then adjust your FM Transmitter to the same radio frequency and you'll have music through your speakers. No software to install. Multi-Channel FM Transmitter has a LCD display to indicate FM frequency. Frequency Band/Bandwidth: 88.1 MHz to 107.9 MHz FM. Memory function allows you to save up to 4 frequently used FM frequencies. Compatible with any music, MP3, media player w/ standard 3.5mm headphone/audio output jack.