Specification:Button Numbers3ColorBlackConnection Type2.4GDimension(LxWxH)113*62*38mmOptical Sensor Resolution1200 DPIOthersSensitive switch & smooth scroll Power Saving function to save the batteries powerPower Source1*AA BatterySensorNewest optical sensor with 1200 dpi resolution, more preciseShapeErgonomic design, comfortable & agile to operateSystem Requirementswindows 7/8/10/xp/vista/MacWeight62.6gWarranty1 Year WarrantyWarranty1 Year .
