Umiio Q3 Pro Android Player Projector 4K Resolution Portable Intelligent Projector Matching Game Controller HDMI HD Interface Projector

Overview*This projector is designed as a home theater video projector, for your better viewing experience, please use it in a dark environment.Keep off light from the screen by covering windows or blocking direct sunlight. **It projector comes with built-in smart TV system , we will upgrade the system from time to time to ensure the smoothness of the projector, so please take the time to upgrade the projector when you receive the upgrade prompt. **This projector is not equipped with a built-in rechargeable battery function. If you want to use it when camping or having a party outdoors, you can bring your electricity power supply invertor. ** If the image is not clear, use manul button correction focus or control by remote functions have not been adjusted properly. Please notice that the projector does not support automatic side projection.