BrandLenovoSupported OSOS IndependentPower RequirementKB：420mAh lithium batteryCable Length/Type1 M / USB A to C Battery LifeUp to 3 monthsBattery Charging Time2hours for full chargeHot KeyF1 to F12P1 to P4Special/Added FeaturesProgrammable Keys /Lithium battery /Seamless switch up to 3 devices / Dual mode connections: 2.4G & BluetoothColor GreyBacklightNoTilt AdjustableYesKeyboard Key LifecycleUp to 10 millions clicksSuspension Cap/Embedded CapNoKey StyleIsland style keysSwitch TypeScissors switch keysX-direction Key Pitch19.05 mm (0.75 in)Y-direction Key Pitch19.05 mm (0.75 in)LengthKB: 437.4 mm (17.22 in)DepthKB:128.8 mm (5.07 in)HeightKB:14.8 mm (0.58 in)Product WeightKB：586 g (20.67 oz)Included AccessoryLenovo USB-A Unified Pairing ReceiverSpecialized Software/DriverLenovo Go CentralConnectivity2.4G & BluetoothHardware RequirementsSupported PC with USB-A port or Bluetooth Low EnergyPackage TypeBrown Box (FSC Certified) Packed Dimensions (L x D x H)495 x 129 x 42 mm(19.49 x 5.08 x 1.65, in)Packed Weight795 g+/-40 g(28.04 oz)Minimum Operating Temperature0 degrees Celsius (32 degrees Fahrenheit)Maximum Operating Temperature40 degrees Celsius (104 degrees Fahrenheit)Minimum Relative Humidity (%)20%Maximum Relative Humidity (%)95%