ADJUSTABLE SCREEN SIZE: This widescreen video projector uses LED projection lighting lamp for maximum brightness of 400 lumens and button activated zoom level adjustment. The adjustable viewing screen size is 20''-120''.. BUILT-IN SPEAKER: This home project resonates surround sound audio with its built-in dual stereo speaker. It even has audio connector jacks for RCA inputs and outputs. It also comes with a universal remote for easier control.. ENTERTAINMENT PROJECTOR: This entertainment projector can project various files with its HDMI, USB, AV, VGA and SD Memory Card input ports. This can be a great computer projector for games, home projector, movie projector and etc.. VERSATILE PROJECTOR: A versatile professional home theater projector that can be used anywhere. Very appropriate for classrooms, conference rooms, home theatre and cinema experience, business offices and so on.. FULL HD 1080P PROJECTOR: High definition video projector 1080p which has a native resolution of 320x240. With digital multimedia file reader and shows powerpoint presentations, pictures, movies and videos from your PC, TV, laptops and more..