Office RF Wireless + Bluetooth Scissor key switch QWERTY UK English Full-size (100%) Numeric keypad Adjustable keyboard height Backlight Graphite 1 pc(s) Keyboard On/off switch Yes Bluetooth Low Energy (BLE) Yes Bluetooth version 5.1 Multi-device support Yes Keyboard key profile Low-profile Numeric keypad Yes Keyboard form factor Full-size (100%) Pointing device No Keyboard language UK English Keyboard layout QWERTY Keyboard key switch Scissor key switch Device interface RF Wireless + Bluetooth Connectivity technology Wireless Recommended usage Office Design LED indicators Yes Surface coloration Monochromatic Product colour Graphite Adjustable keyboard height Yes Keyboard style Straight Backlight Yes Features Wireless range 10 m Power Service life of battery 36 month(s) Battery technology Alkaline Number of batteries (keyboard) 2 Keyboard battery type AAA Power source type Battery Mouse Mouse included No System requirements Other operating systems supported ChromeOS Mobile operating sy