Features: l SIGMATEL 3520 software solution: better clear sound performance with low power consumption l High speed USB 2.0 data transfer: l Support MP3 and WMA music formats. l Displays name of song, lyrics and playing time in English and Chinese l Two recording mode: MIC and Line IN l 6 EQ mode: NORMAL,DBB,POP,ROCK,JAZZ, CLASSIC l Mobile hard disk function l Built in SD, MMC card slot support up to 2 G external plug-in card). l Line ? in recording or Double headphone jack l Blue color backlight. l Repeat and follow-read function l One AAA batteries plays up to 7-8 hours l Weight: 45g l Size: 93mm?45mm?15.5mm In the box: one Earphone, one USB Cable, line-in recording cable, one Installation Disc for operation system under win98