MP3 player Compatible with WMA/MP3 format files Capable with WINDOWS95/98/2000/ME/XP High speed USB Interface, can be used as a USB disk Saving evergy: 1*1.2V rechargeable battery or 1*AAA battery can work up to 10 hours Build-in 32/64/128MB flash memory Backlight LCD display Recording function: can reach 130/270/520 minutes Several Sound effect seletable mode Delete files without connect compute; 10.Size: 65*45*15mm Weight: 30g