Technical Information Brand Lenovo Supported OS Windows 10,OS Independent Power Requirement 1 AA battery Battery Life Up to 12 months (may vary based on usage) Mouse Sensor Optical sensor Mouse Resolution 1000 DPI Scrolling Scroll wheel (up/down) Number of Button 3 (left click, right click, scroll click) Button Life Up to 10 million clicks for left and right buttons  Color Black / Cloud Grey / Arctic Grey / Frost Grey Backlight No Length 97.91 mm (3.86 in) Depth 57.99 mm (2.20 in)  Height 32.53 mm (1.26 in)  Product Weight 56 g (1.97 oz) Connectivity 2.4 GHz Wireless via Nano USB Hardware Requirements Supported PC with USB-A port Package Type Blister pack Packed Dimensions (L x D x H) 182.4 x 122.3 x 75 mm (7.16 x 4.80 x 2.95 in) Packed Weight 112 g (3.95 oz) 140 g (4.93 oz) (with battery version) Minimum Operating Temperature 0 degrees Celsius (32 degrees Fahrenheit) Maximum Operating Temperature 40 degrees Celsius (104 degrees Fahrenheit) Minimum Relative Humidity (%) 20% Maximum Relative Humidity (%) 95% Smart Find Visibility Yes