Special Features:

Environmental characteristics: storage temperature is -25 degrees f to 150 degrees f and the pointing device shall be ip64 waterproof compliant per iec 60529. Physical characteristics: weight is 8 oz max; the pointing device shall have a of two function buttons; the unit shall utilize an optical tracking device; the unit shall have a series a usb plug; cable length is 4.5-6.5 feet.

Properties:

A device which includes a sphere mounted in a small open-topped box. The sphere is hand-operated by rotating it in a backward, a forward, or a sideway direction while maintaining the device in a fixed location. The movement of the sphere generates a signal which may be used to move a cursor and/or tracking symbol on the face of a display, such as a cathode ray tube; to input data into an electronic system; and/or to control the operation of a system. It may or may not include additional input devices, such as switches or variable resistors.