1.Widely used in teaching & training 2.Easy and convenient operation 3.Strong and abundant software support 4.Electronic pen, smooth writing 5.Prompt response speed 6.Durable structure and design for easy maintenance if needed 7.CE/FCC/ROHS certificates Model GK-880D/80S "Diagonal Size(Inch)" 80" Working principle Wireless electromagnetic Writing type Wireless pen Effective writing area 1600x1160 Resolution 8192x8192 Aspecto ratio 4:3 Power supply USB supply,no extra power supply Input power 220 V, 50/60Hz Output power DC í+ 9V Power consumption
