Product introduction:Use it as standalone MP3 player or pop it in your car stereo to play all your favorite MP3 tunes， right from your SD card，It even doubles up as a card reader when connected to your pc.Features:Portable MP3 playerPlays MP3 files on car audio or boom box via tape deckAutomatic music file search， Automatic playingRepeat playback mode， 6 navigation ButtonsSD/MMC card readerUSB 2.0 hi-speed interfaceSupports windows 2000/XPSpecifications:Audio fils format: Mp3Bit rate: 32 kbps ~ 256 kbps.cbr/vbr.Audio channel: stereoSD card: support~8gbBattery: Internal 450mAh lithium-ion batteryPowered by USB DevicesPlug type: US Plug (AC110-220V， 50/60Hz，AC10mA)Dimension: 63 x 102 x 11.5mm (2.4"x4.0"x0.5").Color: As picturesQuantity:1 Set