video mp3 storage type: flash memory capacity : 2 gb display screen : 1.8" ; display type : tft lcd display resolution : qcif (176 x 220) output power (@16 ohm earphones) : 20 mw/ch (5 mw/ch - fr) battery type: lithium-polymer time: battery playback time: (audio) 25 h , (video) 4 h music storage capacity(@128kbps mp3): 30 h video storage capacity(@128kbps mp4): 3h 47m charging time : (pc) 3 ; charging time (adapter) 3 os compatibility : xp, vista (+2000, me: ums) system : sound effect: user eq, preset eq , sound feedback system : connectivity : usb connection(mtp/ums) ums, j(mtp) connectivity (usb version): usb 2.0 file format supp: mp3, wma, mpeg4(svi), ogg(ums only), jpeg, txt recording : fm recording file mgt : mobile playlist(favorite) , pc playlist (wpl) library( artist, album,genre,title db sorting) file navigation , pc application : sms , pc playlist (spl) net dimensions : w x h x d 44 x 95 x 9.8 ; net weight : 53 other features:* adjustable play speed, * alarm, * album art