LG OLED55C1 55-inch Self-Lit OLED 4K ThinQ AI Smart TV (LG OLED55C1) - Resolution: 4K Ultra HD (3,840 x 2,160), Refresh Rate: 120Hz Native, Display Type: OLED Display, Processor: α9 Gen 4 AI Processor 4K, Dimming: Pixel Level Dimming, Speakers: 40W, Channel: 2.2 Channel, AI Picture Pro, AI Sound Pro, Cinema HDR (Dolby Vision, HDR10, HLG), Dolby Atmos, Connectivity: HDMI Input (HDCP 2.2) 1 x (rear) / x 3 (side), HDMI Audio Return Channel (ARC), 1 x RF Connection Input (Antenna/Cable), 1 x RS-232C Input (Mini Jack), 1 x Headphone Out, HDMI-CEC (Simplink), Smart Phone Connectivity, Latest HDMI (4K @ 120Hz), USB Ports (v 2.0) 2 x (rear) / 1 x (side), 1 x Ethernet Input, Wi-Fi Certified 802.11ac, Bluetooth Support Version 5.0, Operating System (OS): webOS, VESA Mounting (W x H): 300 x 200