LG 55UP7500 55-inch UHD ThinQ AI Smart TV (LG 55UP7500) - Resolution: 4K (3840 x 2160p), Refresh Rate: 50 (60) Hz, Processor: Quad Core Processor 4K, HEVC (Video Decoder): 4K@60p, 10bit, VP9 (Video Decoder): 4K@60p, 10bit, HDR10 Pro: RF / HDMI / CP / USB (4K/2K), Speakers: 20W (10W per Channel), Channel: 2.0ch, AI Sound, Connectivity: 1 x USB, Headphone out, Wifi, 2 x HDMI 2.0, Bluetooth (V5.0), LAN, Optical Digital Audio Out, eARC / ARC (Audio Return Channel), Operating System (OS): WebOS 6.0