Resolution: 4K Ultra HD (3840x2160) | Refresh Rate: 60 hertzConnectivity: 3 HDMI ports to connect set top box, Blu Ray players gaming console | 2 USB ports to connect hard drives and other USB devicesSound: 20 Watts Output | Dolby Audio + DTS-HD. Audio Power :10W x 2Smart TV features : Built-In Wi-F..