... build in WIFI and Android OS,you can connect with wireless internet and operate various software such as Office,google brower,IM ... )7"-100"Project distance17.8cm to 300cmOperationOperationTouch pad;Remote control;Wireless mouse and keyboardInterfaceUSB2.0 input,VGA Port, DC port, ... Micro TF slot ,earphone portFeatureCan be connected to Notebook,3G Mobile Phone, IPHONE, IPOD, PDA, PSP, VCD, DVD,X- ...