Product Specifications Model: HLN840J File Number: HLN20140101 Version: 2.0 Date: 2014.01.01 Appearance Photos: Machine Screen Size: 84 inch display category: TFT-LED backlighting packaging sizes - Dimension 1970.4mm * 1156.2mm * 116.5mm Power Power Power: ≤1080W Standby power consumption: ≤2W Operating voltage: 100V-240VAC 60 / 50Hz display parameters Maximum resolution: 4K * 2K viewing angle: Horizontal 178 °, vertical 178o maximum brightness: 450cd / m2 highest Contrast: 1600; 1 Response time (G to G): 5ms color degree: 16.7 millions YPBPR interface input and output ports: 1 VGA port: 1 HDMI Interface: 4 USB ports: four network interfaces 1 channel audio input and output 2 Group Environmental Operating Temperature: 0 ℃ ~ 50 ℃ Operating Humidity: 10% ~ 90% Storage Temperature: -20 ℃ ~ 55 ℃ Storage Humidity: 5% ~ 95% of the standard configuration machine: a stage base: optional manual: a power cord: a wall: a certificate / Warranty Card: 1