... Transmitter Read MP3 files from USB flash disk or SD/MMC card, enjoy music via car stereo. Car MP3 FM Transmitter ... 1. Read MP3 files from USB flash disk or SD/MMC card, ... tuner, then enjoy music via car stereo. 2. Support external audio player(MP3 player(MP3 player, CD, VCD, etc.) . ... more beautiful and clear.8. Horizontal distance of transmitter: >10m. Team two