UC40 Projector key Features: 100% brand new and high quality. Picture switch form 16:9 and 4:3. Multi-function inout: IP/IR/USB/SD/HDMI. Keystone correction supported. Power bank charge charge function by USB port to connect. 55W low power cost, eco-oriented. Electronics zoom function, easy picture size change. LED lamp, works for over20000 hours, with vivid color and abundant details. The technology of projection is 0.24’’ DMD, LED tricolor(RGB) projection. Support 1080P Full HD input the scale of screen is 4:3, the distance of projection is from 0.3m to 3m. Multi language support.