Immerse yourself in a world of Ultra HD. The UHD51A delivers the ultimate in smart home entertainment with impressive 4K cinema quality images and support for Alexa voice control. You can now enjoy accurate colours, crystal clear detail, and sparkling contrast for a stunningly immersive experience. Alexa voice control provides instant setup allowing you to adjust the volume, switch inputs, launch content and more. Packed with the latest technology and features, this compact UHD projector boasts High Dynamic Range (HDR) compatibility, HDCP 2.2 support, wireless, a built-in media player and PureMotion frame-interpolation processing which eliminates motion blurring or image judder. An RGBRGB colour wheel delivers 100% Rec.709 for accurate, true to life colour rendition - perfect for recreating the big-screen experience at home. Control your projector with your voice using Alexa. You can ask Alexa to turn the projector on or off, adjust volume , switch inputs and more. Voice control is a natural way to interact with technology in the home, and now owners of Amazon Echo devices can simply control the projector with their voice. With over eight million pixels, Ultra HD 4K resolution brings four times more detail than Full HD, to deliver sharper, life-like images and richer colours - allowing you to sit closer to the screen and enjoy a more immersive experience. Capable of receiving and displaying HDR meta data, Optoma HDR compatible projectors allow you to see far more detail and texture. Objects look more solid and life like and the extra detail creates a greater sense of depth. It's like looking through a window. Watch your movies, TV shows and play games with stunning colours in any environment. Optoma projectors provide reliable performance suitable for any content and environment. Our home projectors are capable of reproducing the Rec.709 colour gamut, the international HDTV standard to guarantee accurate reproduction of cinematic colour exactly as the director intended. Or more saturated colours for a punchy looking image, great for gaming and animated movies.