SilentTouch Technology

• 90% noise reduced Left/Right-click, Middle click 1Sound level comparison between Logitech M220 and Logitech M170. Left click dBA measured by an independent lab at 1m.

Sensor Technology

• Smooth optical tracking
• DPI (Min/Max): 1000?

Buttons

• Number of Buttons: 3 (Left/Right-click, Middle click)

Scrolling

• Line-by-line scrolling
• Scroll Wheel: Yes, 2D, optical

• Manufacturer- Logitech
• Series- Silent Wireless Mouse
• Model- M221
• Sensor type- Optic
• Mouse type (wireless or wired)- Wireless
• silent mouse- Yes
• Miniature USB receiver- Yes

• Number of Buttons: 3 (Left/Right-click, Middle click)
• Customization app: Supported by Logi Options+ on Windows and macOS
• SilentTouch Technology: Left/Right-click, Middle click, Scrolling and Gliding have been noise reduced
• High Precision Optical Tracking
• DPI (Min/Max): 1000?

• USB wired interface
• Ambidextrous layout
• 1000DPI format
• 2 buttons and a scroll