Part Number 4Y41R64511 Tech Specs JAN 4582764189666 EAN 0195892113997 UPC 195892113997 Smart Find Visibility Yes Warranty Type Customer Replaceable Unit (CRU) Warranty Period 3 Years Maximum Relative Humidity (%) 95% Minimum Relative Humidity (%) 20% Maximum Operating Temperature 40 degrees Celsius (104 degrees Fahrenheit) Minimum Operating Temperature 0 degrees Celsius (32 degrees Fahrenheit) Packed Weight 795 g+/-40 g(28.04 oz) Packed Dimensions (L x D x H) 495 x 129 x 42 mm (19.49 x 5.08 x 1.65, in) Package Type Brown Box (FSC Certified) Hardware Requirements Supported PC with USB-A port or Bluetooth Low Energy Connectivity 2.4G & Bluetooth Shipment Group Lenovo Professional Wireless Rechargeable Keybpard Lenovo USB-A Unified Pairing Receiver Warranty & Setup Poster Included Accessory Lenovo USB-A Unified Pairing Receiver Product Weight 586 g (20.67 oz) Height 14.8 mm (0.58 in) Depth 128.8 mm (5.07 in) Length 437.4 mm (17.22 in) Y-direction Key Pitch 19.05 mm (0.75 in) X-direction Key Pitch 19.05 mm (0.75 in) Switch Type Scissors switch keys Key Style Island style keys Suspension Cap/Embedded Cap No Keyboard Key Lifecycle Up to 10 millions clicks Tilt Adjustable Yes Backlight No Color Grey Special/Added Features Programmable Keys / Lithium battery / Seamless switch up to 3 devices / Dual mode connections : 2.4G & Bluetooth / AES 128 encryption Hot Key F1 to F12 P1 to P4 Number of Keys 104 Keys Language Layout Czech/Slovak Keyboard Layout 3-Zone Battery Charging Time 2 hours for full charge Battery Life Up to 3 months Cable Length/Type 1 M / USB A to C Power Requirement 420mAh lithium battery Supported OS OS Independent Brand Lenovo