*This item is REFURBISHED. The Samsung MU6300 Ultra HDTV redefines the viewing experience by producing a colorful High Dynamic Range (HDR) picture. Our new Smart TV user-interface (UI), the new Smart Remote Controller with voice navigation capability provides faster access to your favorite streaming content choices and more. Screen Size (Diag.): 50"Backlight Type: LEDResolution: 2160pEffective Refresh Rate: 60HzSmart Functionality: yesAspect Ratio: 16:9OSD Language: English, Spanish, FrenchSpeakers/Power Output: 10W x 2Sound System: Dolby Digital PlusHDMI Inputs: 3RS-232C: 1USB 2.0 ports: 2Built-in WiFi: yes