Specs & Details Dimensions Height: 5.45 in (138.47 mm) Width: 12.65 in (321.2 mm) Depth: 1.39 in (35.4 mm) Weight (with batteries): 27.48 oz (779 g) Technical Specifications Connection Type: Bluetooth Low Energy Wireless (Bluetooth 5.1) Wireless range: 33 ft (10 m) Mechanical switches (Brown, tactile) Battery: 2 x AAA Battery life: 36 months 1Battery life may vary based on use and computing conditions. Indicator Lights (LED): Battery LED, 3 Bluetooth channel LEDs, Caps lock LED Customization app Supported by Logi Options+ on Windows and macOS 2Available on Windows and macOS at logitech.com/optionsplus Sustainability Blast plastics: 41% post-consumer recycled material 3Excludes plastic in printed wiring assembly (PWA), and packaging Daydream, Heartbreaker, Mist and Cosmos plastics: 20% post-consumer recycled material 4Excludes plastic in printed wiring assembly (PWA), and packaging.