System Feartures And Function: 1) USB connector for Digital Flash Drive/MP3/Memory CardThere is a unique Flash Drive/Mp3/Memory Card USB connector, the mp3 file can be read directly by fixing any of memory devices in this connector.(Dont forget to prepare an appropriate USB reader for playing CF,SD,MMC memory cards.) Best CompatibilitySupport all fash drives in the market, the MP3 files in CF,SD,SM card can be played on this system by USB reader, If you have got a memory stick of digital camera, you can play the stocked music. 2) Stereo FM radio.Buit-in High performance stereo FM module. Using PLL radio receiving technology feartures the radio have a better stability and better sound quality. 3) Multimedia 2.0 speaker systemAudio input supplied, any normal audio device such as iPod, VCD, MP3 player, CD,MD,DVD can be connected with this speaker system. 4)Line-in and Earphone output.