Details :
Precision optical performance in an agile, modern design with USB micro receiver 3 buttons with scroll wheel 2.4GHz RF technology offers wireless freedom with effective range up to 33ft Auto power management helps maintain proper battery levels On-board storage compartment protects USB receiver from loss & damage Ergonomic shape & no-slip texture provide secure grip Low-friction base smoothly glides over work surfaces Plug & play installation Windows(R) & Mac(R) compatible 3-year warranty Blue/Black
Warranty : THREE YEAR