Light-resistant design, can be suitable for internal and external linked environment, widely used to financial telecom service, advertisement show, industrial control, public query, self-service, E-education, and games etc. ^^ USB interface, Intelligent automatic calibration, drive-free and maintenance-free. ^^ Aluminum alloy shell with strong stability, fast response (less than 10ms). ^^ Without driver, supporting plug and play. ^^ Draw smooth&accurate curves, no blind area, breakpoints, jump points, pause and other undesirable phenomena.