With SD/MMC card Slot, with USB port Support 512M/1G/2G/4G memory card extention (Including High-speed USB Transmission Support the playback format of MP3 FM Range: 87.50MHz~108.00MHz(Europe) Stereo electronic tuner, scan & store stations automatically Electronic tuning, More than 3 Bands(FM1, FM2, FM3)and 18 Preset Stations Power-Off with Auto-memory store function under radio or SD/MMC/USB Mode. LED/LCD colorful display(optional) EQ effect: Flat/Jazz/Rock/POP/Class/LOUD Mosfet: 45 watts x 4 max power output, human engineering coding volume knob Many kinds of sound effects can be selected, DSP digital audio control Multi-function IR remote control(Optional) Power supply: Compatibility DC 12V-24V(Optional) AUX input(optional) Bass & Treble, L&R channel stabilizer AM/RDS functions (Optional) Mute Control.