interactive electronic whiteboard--78 inch

Interactive electronic Whiteboard Model: TE-78 Panel size: 78"(4:3) Sensor: infrared writing styles: finger/pen Touch precision:8192*8192 Consume current: ≤100mA Cusor speed: ≥125dots/second Data port: USB 2.0/wireless RF2.4G/RS232 (optional) Power supply: By USB, no need other cable. Location preciseness: ≤ 0.2mm Intersity of anti-light: strong, no problem for operation under direct sunlight. Transmission speed:12M/S Scan speed: first dot for 25ms, following dot 8ms.