Wemax Laser Projector Full HD 4K ALPD 3.0 7000 LumensThis is the world's first ultra-short projector with advanced laser display ( ALPD ) technology, which delivers up to 150 inches of full HD quality images in 50 centimeters, with product life up to 25, 000 hours. To achieve user-friendly design goals, the high-tech product uses a compact, minimalist "box" design language, and carefully maintained the host and Bluetooth remote control design style consistency. In any corner of the room control the host, voice assistant quickly find programs and other interactive ways for the user to bring a new movie viewing experience. Main FeaturesFeatures ALPD 3.0 laser light source technology by AppotronicsIn addition to high-quality lasers, the unit also features a top-end speaker system for a true cinema experienceCan project a display up to a maximum of 150 inchesOffers a maximum of 7000 lumens source brightness and a 3000 : 1 native contrastThe remote control is powered by 2 x AAA battery ( not included )