Resolution : 4K Ultra HD (3840 x 2160) | Refresh Rate : 60 Hertz Connectivity: 3 HDMI ports to connect set top box | 2 USB ports to connect hard drives or other USB devices | Bluetooth | Built-in Wi-F I VOICE COMMAND REMOTE Sound: 20 Watts Output WITH INBUILT SOUNDBAR SPEAKER Smart TV Features: River OS | In-Built WiFi | Screen Mirroring | 1GB RAM | 8GB Memory | Supported Apps: Netflix, Prime Video, YouTube, Zee5, Disney hotstar Display: 4K UHD | Reality Flow MEMC | Vivid Picture Engine | DCI P3 94% (typ) NTSC 88% (typ)