... Polymer( 4800mAH ), Lasting 3.5 Hours for Online Video, 5-6 hours for Browsing Webpage Power Adapter110-220V Input, 9V DC ... -in stereo sperkers External Microphone, 2.5mm Earphone Application ProgramInternet Explorer, Media Player, Photo viewer, Word, Excel, Powerpoint, Acrobat Reader, MSN ...