This is a good projector for watching movies, but it also works in offices for meetings and presentations ... it's pretty rare to get a chance to buy a screen of this size for less than $500.
You can easily control the projection ... control over the presentation setting, press Win+X to open the Windows Mobility Center. Also read: How to mirror Windows PC screen to another device.
They've really rocketed in popularity because people love the idea of being able to point the projector at a wall anywhere to instantly have big-screen entertainment. Well, stop that right now.
A device that projects computer and TV output onto a white or silver fabric screen ... Data projectors are widely used in classrooms and auditoriums for instruction and slide presentations.