Stay focused with the Logitech M221 Silent Wireless Mouse, designed to reduce over 90% of clicking noise with SilentTouch Technology, so you can work quietly without sacrificing performance. Its compact, ambidextrous design fits comfortably in either hand and travels easily with your laptop. Enjoy smooth, accurate tracking and line-by-line scrolling on most surfaces. The reliable USB receiver provides a strong wireless connection up to 10 meters, and the battery lasts up to 18 months with auto-sleep and an on/off switch for power saving. Compatible with Windows, macOS, ChromeOS, and Linux, the M221 is a quiet, durable, and dependable everyday mouse. Specifications Dimensions: Mouse: H99 x W60 x D39 mm 75.2g (With Batteries) USB Receiver: H23.1 x W18.7 x D6.1 mm 1.8g SilentTouch Technology: 90% noise reduced Left/Right-click, Middle click Sensor Technology: Smooth optical tracking DPI (Min/Max): 1000± Buttons: No. of Buttons: 3 (Left/Right-click, Middle click) Scrolling: Line-by-line scrolling Scroll Wheel: Yes, 2D, mechanical Battery: Battery: 18 months Battery Details: 1 x AA (included) Connectivity: Connection Type: 2.4 GHz USB wireless connection Wireless range: 10 meters Connect / Power: Yes, on/off switch Sustainability: Product carbon footprint: 4.07 kg CO2e