... 7"-100"Project distance17.8cm to 300cmOperationOperationTouch pad;Remote control;Wireless mouse and keyboardInterfaceUSB2.0 input,VGA Port, DC port, ... cable, AV adapter, VGA cable, Tri-pod Optional:Wireless keyboard and mouse;mini screen;Back up battery;portable speaker ... wireless internet and operate various software such as Office,google brower,IM(MSN,Skype,QQ),Web TV,online MP3,on line novel,network ...