... -in 3G * Can play 4-5 hours* Batter power: 4000mAh * Video formats: RM,RMVB,MKV,FLV,MPG,MP4,3GP,DAT,MOV ... ,WMA,WAV,AAC,OGG,APE,FLAC,AC3 * Office email client, video player, widgets, picture viewer, browser, office suit, gaming, application shop ...