The Aerpro AMPFMT35 4 Channel FM Transmitter allow you to play your digital audio tracks from MP3 players, iPhones, iPods and smartphones through your car audio system over FM radio.

The AMPFMT35 provides 4 FM frequencies for use, 88.1,88.3,88.5 and 88.7 so if you get interference on one channel you can simply flick the switch to use a different channel.

Note: The source devices volume level will affect the output volume and audio quality, we suggest setting the volume of your device no higher than approximately 90% of maximum output.