A portable projector for business use, featuring the “world’s fastest wireless” function that can project video files smoothly and operates even without a PC cable. A compact slim body as small as an A4 sheet of paper and weighing only 1.9 kg is packed with ease-of-use functions, a brightness of 2000 ANSI lumen, XGA, and quick startup of 2 sec before projection. A slim and noiseless design that blends in well with offices (meeting rooms) and offers no distractions from the screen. The control area is concentrated on the top face for ease of use, and includes an intuitively operable independent zoom focus.