1.      wirelesss technology, prevent the distraction of the complex surroundings,it can be work more stable in the condition of  frequency.

2.      High accuracy optical tracing engine., to provide more precise control.

3.      Unrestrained of wire. No matter in living room or bedroom,you willnot need to bear the limit of wire,easily enjoy the wirelesss freedom.

4.      Mini usb receptor to save tabletop space.

* dpi switch (800-1600)

* Optional colour

* Thumb-size USB receiver for Plug-and-play

* Advanced optical tracking

* on/off  button