Support MP3/WMA/ASF/WMV music format. Built-in FM radio,support FM 20 stations store memory. Built-in 1.5 inch screen 65K color display. Support MTV and AMV (Advance Media Video) format animation file. 512MB /1GB Flash memory. Support Picture browse of JPEG format. Support E-book and *,txt file. Supprt USB 2.0 full speed transmission. Support REC time ; 35hr for ACT(8 kbps) 128M flash base. Build-in rechargeable Li-on battery 6~8 hours listing time