Brightness 4000 lumens Enjoy a maximally clear and bright picture even in daylight (in medium to large-sized rooms). Acer ColorBoost3D Reproduce realistic colors and vibrant images with Acer ColorBoost3D technology. Acer ColorSafe II Enjoy clear and natural colors thanks to ColorSafe II technology, which controls dynamic RGB levels to prevent color fading. Acer LumiSense Acer LumiSense adjusts image brightness and color saturation based on the content. Acer BlueLightShield Protect your eyes from excessive strain using Acer BlueLightShield technology. Built-in speakers What you hear will have the same great quality as what you see, thanks to powerful built-in speakers.