Function & features 1.Video & Voice recording 2.MPEG4(.ASF) Video play 3.High quality MP3/WMA/WAV(PCM/ADPCM) play 4.Picture browsing 5.USB Mass Storage(16-512M internal flash and selectable for SD Card) 6. 2.5 inch TFT LCD screen 7.Powerful external stereo speaker 8.Removable high capacity rechargeable Lithium-Ion battery;