ViewSonic M1 Portable Projector with Dual Harman Kardon Speakers HDMI USB Type C Automatic Vertical Keystone and Built-in Battery
http://bestprojectors.timeforchangecounselling.com/viewsonic-m1-portable-led-projector-with-harman-kardon
The Viewsonic Mini Projector M1 Led Game As you will rarely apply your projector anywhere that doesn't have a power outlet, it's inconvenient to need to tailor your use around the length of time the battery