Tech SpecificationsMore InformationKeyboard Layout2.5 zone layoutKeycap AmountUS English (103P)ColorBlackBattery LifeUp to 12 monthsConnection Type2.4 GHz Wireless via Nano USBWeight0.06kgMice Button3 (left click, right click, scroll click)Button LifeUp to 10 million clicksKeyboard Key LifecycleUp to 3 million clicksMouse SensorOptical SensorHardware RequirementsSupported PC with USB portWarranty TypeCustomer Replaceable Unit (CRU)Power RequirementMouse - 1 AA battery, Keyboard - 2 AA batteriesScrollingScroll wheel (up/down)BrandLenovoPackage TypeBrown boxHeight33mmLengthMouse - 61 mm (2.40 in), Keyboard - 424 mm (16.80 in)Depth106mmWarranty PeriodOne YearMaximum Operating Temperature40 degrees Celsius (104 degrees Fahrenheit)Minimum Operating Temperature0 degrees Celsius (32 degrees Fahrenheit)Maximum Relative Humidity (%)95%Minimum Relative Humidity (%)20%Shipment GroupLenovo Essential Wireless Mouse;X-direction Key Pitch19 mm (0.75 inch)Y-direction Key Pitch19 mm (0.75 inch)Height (US)1.3inWidth (US)2.4inDepth (US)4.17inWeight (US)0.13 lbsWidth61.08mmMin Operating Humidity20%Max Operating Humidity95%Min Operating Temperature0CMax Operating Temperature40COther InformationOPERATING SYSTEMS