Microsoft Modern Mobile Bluetooth Mouse - Mint Interface:Bluetooth® 4.01/4.1/4.2 Wireless frequency:2.4GHz frequency range Wireless range:33 feet (10 metres) in open air, up to 16 feet (5 metres) in typical office environment Buttons:Left, right, middle button, wheel and power (pairing button by long press) Features: Metal wheel for vertical scrolling, wheel button clicking, Swift Pair to pair mouse to computer easily, supported by Windows 10 April 2018 Update or later Customisable features:X-Y resolution adjusting Wheel button function reassignment, left click and right click swap, Wheel customisation Battery level reporting Tracking:Microsoft propriety BlueTrack™ Technology Windows 10/8.1 Compatibility:Windows 10/Windows 10 ARM/Windows 8.1/Mac OS 10+/Android 6.0+ Weight:2.75 oz (78 g), including 2 AAA alkaline batteries Battery life:Up to 12 months typical usage Warranty:1-year limited hardware warranty Dimensions: 4.22' x 2.37' x 1.01' (107.20 mm x 60.30 mm x 25.80 mm) Colours:Glacier