Dimensions Height: 158mm Width: 380 mm Depth: 8 mm front, 22 mm rear Weight: 875g Technical parameters Connection type Logitech Unifying Protocol (2.4GHz) Bluetooth Smart technology Wireless range: Wireless range >10m 1Wireless range may vary depending on environmental conditions and usage. Optional software Logitech Options for Mac: iOS 10.14 or later Logitech Options for Windows: 10 or later Logitech Flow™ Indicators (LEDs) 3 Bluetooth channel indicators Battery status indicator Battery Batteries: 2x AAA (included) Battery: 24 months 2Battery life may vary depending on user and usage conditions Special keys Access keys (e.g. Home, Search, Back, App Switcher and Context Menu), Easy-Switch Connection/Power: Power switch Key life Up to 10 million presses Tablet case and stand Supports most smartphones and tablets up to 11.3mm thick in portrait or landscape mode. iPad Pro (12.9") in landscape mode only.