Polaroid Full HD Ultra Short Throw Projector U-200: 30,000 hours LED Light Source, Android Based Home Theater Projector TV, Supports Gaming, Dual-Band WiFi, 4K Compatible with 0.2:1 Throw Ratio

3D only worked off usb drive. did not recognize from blu-ray player or media player. HDR was was not recognized from any source including Netflix coming from my 4K Roku box. Adjusting the image was extremely difficult since there is no keystone correction , just a left, right and tilt screws. Image was not bright enough in a room with only moderate ambient lighting. Also the fan is very loud.