About this item: 
True 4K 3D Projector: True 4K resolution(3840 x 2160P) and incredible 3200 ANSI Lumens, delivering ultimate color and image with support for 4K, HDR 10, and HLG. 
Advanced ALPD Technology:  Mars Pro Projector uses ALPD light source with a lifespan of 30000H, providing a wider color gamut, and more realistic colors. 
Smart Screen Adjustment: Auto focus, ±40 degrees Auto keystone correction, intelligent obstacle anvoidance and intelligent screen alignment. No space constraints, it can quickly adjust settings itself. 
Dual 10W Speakers, Dolby Audio&dts HD: Dolby Digital and DTS Studio Sound technology is well applied to Mars Pro, provides the ultimate shocking sound for home theater. 
4G+128G ROM, Android OS:  Customizable UI carries thousands of apps. The interface is cleaner, apps launch faster, and playback is smoother. Easier to build a home theater.