PYRUS UC40 Video Projector, Portable LCD LED Mini Projector 800 Lumens Home Cinema Theater Projector The scale of screen is 4:3, the distance of projection is from 3.51ft to 12.48ft;Multi-function input: IP/IR/USB/SD/HDMI LED lamp, works for over 20000 hours, with vivid color and abundant details. Electronics zoom function, easy picture size change Professional trouble diagnose and protection. Picture switch form 16:9 and 4:3 Not recommended for PPT or business presentation, ideal for home theater movies and video game use Keystone correction supported. Power bank charge function by USB port to connect