Factory Cheap 75inch Interactive Digital Board School Android 8 Win10 Dual OS Educational Smart Electronic Classroom Whiteboard

Factory Cheap 55Inch 65inch 75Inch Interactive Digital Board School Android 8 Win10 Dual OS Educational Smart Electronic Classroom WhiteboardWe Promise:1. 100% Guaranteed original new2. 100% Guaranteed fast shipping3. 100% Guaranteed lowest price  Point for our interactive whiteboard: 1.Android 8.0 (Windows OS dual os optional support)                                                     2. RK3288/RK3566/RK3588 CPU 3, 3GB Memory +32GB SSD                     4. 3840*2160 (4K) Full HD Display                         5.WiFi / Ethernet RJ 45 Port 3G, 4G (Optional)        6.Multi-point Touch Screen                                              7.Brightness:400cd/m2                                                     8.Plug and Play Mode                       9.Support built-in microphone & camera 10.Color: Black / Silver 11.Contrast Ratio: 5000:1 12.Response Time