Connection interface: Bluetooth® Low Energy 5.0 Wireless frequency: 2.4 GHz frequency range Wireless range: 33 feet (10 meters) in open area; up to 17 feet (5 meters) in typical office environment Compatibility1: Microsoft Windows 11/10/8.1 Device must support Bluetooth® 4.0 or higher Dimensions: 81.8 x 110.8 X 9.1 mm (3.22 x 4.36 x .36 in) Weight: 2.75 oz (78 g) (including batteries) Battery: 1 CR2032 Lithium coin battery (included and pre-installed) Battery life: Up to 24 months2 Colors3: Glacier, Matte Black