NPR-01 3G-MOUSE:4D Hand TracK MOUSE(with USB port} Key Facts 4D Off -Table Hand Track with USB Interface White body with Black ball Details Patented, brand new input device 4D hand track with USB interface Single ball, high speed optical 4D scroll inside Off-table operation; without space limitation 4D page scrolling function can be controlled simply by thumb The harm of radiation and body fatigue owing to using a traditional mouse can be reduced Compatible with Windows 98/2000/ME/XP/NT Target users: notebook PC users and long-time PC operators USB interface also available Standard colors available: White body with black ball Black body with green ball, with purple ball, or black ball Shipping Details: Individual Packaging Details(Inner Packing):color box Quantity/carton:40pcs Gross Weight:6 kilogram Net Weight:4.24 kilogram Master/Export Carton Volume Cu.Meter:0.047CBM 45x33x32cm