HD Picture: 720p definition, a 300 ANSI lm brightness, and DLP IntelliBright technology combine to provide a crisp, clear picture. Stunning Sound: Dual 10W audio drivers deliver deep bass and cinematic stereo sound. Single-Second Autofocus: Set it down at any distance and angle and get a focused picture in 1 second. Android 7.1: Run streaming and media apps flawlessly. Seamlessly display content from Netflix, Youtube, and more for endless entertainment Playing time 4 hours NOTE: Copyrighted content from Hulu, Netflix, and similar services CANNOT be mirrored or screencast. Download and use the apps directly through Mars II to view copyrighted content from these providers. Chromecast is not supported Power supply : dc 19 = 3A Power consumption < 57W Standby power consumption < 0.5W Display technology : 0.3 inch 1280*720 p DLP Light source : RGB LED Projection image size : 30 to 150 inch Resolution : 1280 * 720 pixels Brightness : 300 ANSI Lumens / 1,500 lm Contrast ratio: 1000 : 1 Projection Ratio : 1.2 Speaker drivers : 10W * 2 Built in battery type : li-polymer Capacity : 12500 mah 3.8v Video play duration : 4 hours Music play duration : 30 hours Remote control batteries CR2032*2 Operating temperature : 0c to 35 c / 32 f to 95 f Operating humidity : 15 % =85 % ( non – condensing ) Storage temperature & humidity < 65 c / 149 f < 90 % humidity Dimension ( w* h * d ) : 122 * 138 * 178 mm / 4.8 * 5.4 * 7 in Weight : 1.483 g / 52.3 oz