Support MP3, WMA audio formats Built-in 128M/256M/512M/1G/2G/4G flash memory Built-in micro-phone, digital voice recording, 72 hours recording time for 256M Repeat functions: A-B repeat, repeat all, repeat one Can be divided into two sub-disks, and one sub-disk can be coded for data security Built-in FM radio, frequency ranged from 87.5MHz~108MHz and 76MHz~90MHz 7 effect qualities: Normal, DBB, Rock, Jazz, Disc, Pop, and Classic 132*32pixels dot matrix LCD with 7 color backlight Supports Multi languages ID3, displays lyric synchronously when playing a song Built-in 200mA Lithium Battery, Can play over 10 hours with music Firmware can be updated from website to extend the function picture manual with indicating words for easy operating USB2.0 portable disk Support Windows 98 SE (Driver CD included) Windows ME, 2000, XP