1.Digital LED for working2.Can support Flash and 5 kinds of EQ (Equalizer) settings3.Built-in FM stereo transmitter4.infrared directly remote control for songs,frequency points (Optinal)5.Ultra wide frequency 87.1MHz 107.9MHz, up to 206 frequency available for transmitting6.Power supply: Fit for 12V/24V power7.Supports MP3, WMA and WAV music file8.Support memory 128MB,256MB,512MB,1GB,2GB,4GB