1.8" LCD Car Mp3 Mp4 Player Wireless Fm Transmitter Sd MMC Remote (Black) Multifunctions: MP3 player, MP4 player, SD Card Reader, FM Transmitter. Support SD/MMC expansion card (1GB-8GB)(SD Card is not included) 12-24 volt wireless transmission. Matched with a remote control. An ideal companion in your car to let your enjoy videos, pictures, music, and FM radio more freely.