OURSPOP UR40 1080P LED Portable Video Projector With AV/VGA/IP/IR/USB/SD/HDMI -Aspect Ratio:16:9 / 4:3 with 20000 hours life.Contrast ratio:800:1 -Keystone correction supported.Maximum Resolution:1080P for display size:20-40Inches -Multi-function interface:IP,IR.HDMI, VGA, AV,SD, USB input -Supports SD card up to 32GB and HDD up to 1TB, -LED lamp.Native resolution:800*480(RGB).Can be powered by power bank.