Two colors to match your style Available in Matte Black and Glacier Pairs with Microsoft Designer Compact Keyboard* to complete your desktop. Smart, compact numeric input Streamline working with numbers at your desk or on the go. Microsoft Number Pad gives you the perfect number pad when you need it, and a tidy workspace when you dont. Slim, compact design Customize to be more productive Customize to add app-specific functions and more complex macros to be more productive. Integrated calculator key. Manufacturer: Microsoft. Manufacturer Part Number: 23O-00016. Brand Name: Microsoft. Product Model: 23O-00016. Product Name: Microsoft Number Pad Matte Black. Product Condition: New. Product Type: Keypad. [Keyboard/Keypad] Keyswitch Technology: Scissor. Keyboard/Keypad Connectivity Technology: Wireless. Keyboard/Keypad Wireless Technology: Bluetooth Low Energy 5.0. Keyboard/Keypad Wireless Operating Distance: 33 feet. Wireless Operating Frequency: 2.40 GHz. Number of Keys: 18. Keyboard/Keypad Features: Connects with up to 3 devices. Hot Keys: On/Off Switch. [Battery Information] Battery Included: Yes. Number of Batteries Supported: 1. Battery Chemistry: Lithium Coin. Maximum Battery Run Time: Up to 24 Months. [Physical Characteristics] Color: Matte Black. Keyboard/Keypad Height: .36". Keyboard/Keypad Width: 4.36". Keyboard/Keypad Length: 3.22". Weight (Approximate): .18 lb. [Miscellaneous] Compatibility: Microsoft Windows 10 / 8.1, Device must support Bluetooth 4.0 or higher. [Warranty] Limited Warranty: 1 Year.