Application: Indoor Viewing Angle: Horizontal 178°, vertical 178° Contrast Ratio: 1000:1 Brightness: 250-1000 cd/㎡ Response Time: <6 ms Input Voltage: AC100~240V 50 /60 HZ After-sales Service Provided: Video technical support, Online support Product name: Advertising Display Installation: Floor Standing Touch screen: Support Optional Function: Android System Operating system: Android/Windows 7/8/10 Certificate: CE/CCC/FCC/ROHS/ISO9001 Function: Selfie Booth Size: Customized OS: Android/Windows 7/8/10(optional)