Hisense 55B4E30T 55-inch 4K UHD Digital Signage Display - Cortex-A73 1.2GHz Dual Core CPU, 2GB DDR3 RAM, Resolution: 3840 x 2160, Response Time: 8ms, Contrast Ratio: 1200:1, Brightness: 400nits, Viewing Angle: 178°/178°, Built-in Speakers: 2 x 8W, Connectivity: 2 x HDMI 2.0, 1 x VGA, 1 x USB 3.0, 1 x USB 2.0, 1 x RJ-45, 1 x Headphone Jack, 1 x Audio Line-Out, Wall Mountable: Vesa (400 x 400mm), Android 5.1 Operating System, Recommended Usage Hours: 16 Hours/7 Days per week