Dell Premier Collaboration Keyboard - KB900 - US International (QWERTY), Interface: 2.4 GHz, Bluetooth 5.1, Backlit: Yes, Wireless Receiver: USB wireless receiver, Hot Keys Function: Multimedia, programmable, calculator, play/pause, backlight control, print screen, scroll lock, Zoom touch controls, Localization and Layout: QWERTY US International, Keyboard Technology: Scissors, Features: Numeric keypad, Width: 43.97 cm, Depth: 12.16 cm, Height: 2.07 cm, Weight: 728 g, Colour: Graphite, Included Accessories: USB-C to USB-C cable, Compliant Standards: AES-128, Zoom certification, Included Software: Dell Peripheral Manager (Windows only), OS Required: Apple MacOS, Linux, Android, Google Chrome OS, Red Hat Enterprise Linux 8.0, Ubuntu 18.04, Microsoft Windows 7 / 8.1 / 10 / 11, Battery: Rechargeable, Run Time (Up To): 20 days, Warranty: 3 Years