... call function::GSM SIM card talk/ SMS,3Gmodel(optional),SKYPE MP3: MP3,WMA,MP2,OGG,AAC,M4A,MA4,FLAC,APEMP4: 3GP,MP4 ... least 3.5 hours Video Playing,5hours Music Playing,Web Browsing 2.5hours 2012,yxtel mobile phone,mobile,tablet pc,computer,skype call