Backlight LED Resolution 3840 X 2160 (4K UHD) Screen Size (Inch) 55" Audio Dolby Digital Plus Yes Sound Output (RMS) 20W Speaker Type 2CH Bluetooth Audio Yes Video Auto Motion Plus Yes Color Dynamic Crystal Color Contrast Mega Contrast Contrast Enhancer Yes Film Mode Yes HDR(High Dynamic Range) HDR HDR10+ Support HLG (Hybrid Log Gamma) Yes Micro Dimming UHD Dimming Picture Engine Crystal Processor 4K PQI (Picture Quality Index) 2200 Viewing Angle (H/V) 178/178 LED Clear Motion Yes Input & Output USB 2 Ethernet (LAN) Yes Digital Audio Out (Optical) 1 RF In (Terrestrial / Cable input / Satellite input) 1/1(Common Use for Terrestrial)/1 CI Slot 1 HDMI A / Return Ch. Support Yes Wifi Yes (WiFi5) Anynet+ (HDMI-CEC) Yes Variable Audio Out Yes Variable Audio Out Volume Control (Side/Rear) Yes RJ12 Yes Ethernet Bridge (LAN-Out) Yes General Feature Accessibility UK English, German, French, Spanish, Italian, Dutch, Polish, Danish, Swedish, Finnish, Norwegian, Portuguese, Russian(only when connecting to Ambient Mode Yes Auto Channel Search Yes Auto Power Off Yes BT HID Built-in Yes Caption (Subtitle) Yes ConnectShare™ (HDD) Yes ConnectShare™ (USB 2.0) Yes EPG Yes IPv6 Support Yes MBR Support Yes OSD Language 27 European Languages + Russian(only when connecting to Network in EE,LV,LT) Teletext (TTX) Yes USB HID Support Yes