◇◇Technical Parameters1、Board facing angle: ≥85 inches, display ratio 4:3;2、Touch sensing method: optical image sensing technology is a touch frame co
85 Inch Optical Whiteboard Parameter
◇◇Technical Parameters1、Board facing angle: ≥85 inches, display ratio 4:3;2、Touch sensing method: optical image sensing technology is a touch frame co
82 Inch Optical Whiteboard Parameter
◇◇Technical Parameters1、Board facing angle: ≥82 inches, display ratio 4:3;2、Touch sensing method: optical image sensing technology is a touch fra