... expansion is 16G TF card Expansion Bluetooth files transmission,Bluetooth earphone(voice),Bluetooth music(stereo) Data transfers WIFI/USB/bluetooth,U disk,activsync Image format ... MP3,MP4,Hand free,SMS group send,Recorder,WAP,Handwriting,Bluetooth,GPRS,MMS,Smart phone,Storage expansion,E-book,Incoming call ... : Hisilicon-K3 360MHzOS: Windows Mobile 6.1PPCROM/RAM: 256M/128MGPS/WIFI/Gravity sensor