Tronfy Entertainment Home Cinema Theater Multimedia Mini 800 Lumens Portable LED Projection Micro Engery-saving Projector Not recommended for PPT or business presentation, ideal for home theater movies and video game use. Native Resolution:800*480, Contrast:800:1. Updated model, can provide crystal clear image in dark! (NEED TO USE IN DARK ENVIRONMENT) Image size:38-130 Inches, Projection distance:1.2m-3.8m. Our projector is not the SHORT THROW PROJECTOR (IF YOU LOOKING FOR Short throw projector please go for Google it FIRST) ,it only can adjust the size of image by change the distance.We suggest best Projection Distance:1.2-2M; best Projection Size:38-80 inches,which can make you obtain best User Experience. You can watch your favorite programs with bigger screen via HDMI/USB/SD Card; Connect your PC / Laptop / DVD Player to enjoy videos or movies. Connect Playstation PS3 PS4 or X-Box via HDMI port to enjoy games on so big screen!Usually, when the projectors works, the fan will make noise to Radiating due to the highly temperature. It will be better that you can have a break after 3-4 hours using to avoid overheating. Multi-function input AV/USB/SD/HDMI/5V-OUT USB, 50W Low Power Cost. The USB port is only for U-Disk/Hard Disk Device connecting, as for connecting iPhone/iPad/Android Smartphones, the projector support MHL Input, you need to order the MHL CABLE LOCALLY. 5V-Output USB for Mobile Tablet power supply.This means the usb output is only for power supply.NOT FOR iphone,iPad charging. Portable design, easy to take and travel.SystemSupport:Multi-media (Music, Picture, Video, TXT); Enjoying watching movie and football match at home,also applying to courtyard or outside. Halloween,Party,Christmas gift for mother and children. If you want to remove the watermark UNIC on the top right corner or any other questions,please feel free to contact us at ASAP.