... -in 2x2w speakersCase ColorBlack/Silver (Optional other colors) Function High Accuracy: 2mmHigh Response Speed :< 16ms, High ... , industrial, control and POS terminals.Full Function Wireless Remote ControllerBuilt-in speaker/amplifier and earphone jackTouch-screen for PC ... ):3ms 6. High accuracy, automatic detection and reset function design, high reliability, track smooth7. Fault-tolerant design ...