(16:9/4:3 Aspect Ratio Wide Screen) Manual Focus,20-60 Inch Image,Manual and Remote Control, 400 Lumens Brightness, Native Resolution:320&times;240, Support 1920*1080,AV/USB/SD/VGA/HDMI Multimedia Ports, With Calculator,Stopwatch Function Speaker (1.0W*2), stereo headphone output Contrast:300:1 Screen Aspect Ratio:4:3/16:9 Projected image size:30-60inch Maximum capacity of memory card support:500G