Sinotec 55 inch G1U UHD Smart LED TV – Resolution 3840 × 2160, DMR 60Hz, Response Time 8ms, Contrast Ratio 1200:1, Brightness 250nit, Whale OS with App Store and Browser, Built-in Wi-Fi 2.4G, 2T2R, 2x USB 2.0 ports, 3x HDMI ports, 1x Ethernet LAN Port (RJ-45), 2x 10W Stereo Speaker System, Retail Box , 3 year Limited Warranty