Logitech m220 silent with the same click feel and 90 per cent noise reduction, enjoy a quiet experience for yourself and those around you. Plus, m220 silent has a long lasting 18 month battery life, a powerful 10 metre wireless range and its small size is perfect to toss in a bag and go. Sound level comparison with logitech m170. Measured by an independent lab and verified by quiet mark. Actual battery life and wireless range may vary based on your use. Key features over 9 per cent noise reduction. 18 month battery life. Reliable wireless connection and advanced optical tracking. Comfortable ambidextrous shape. Mobile size. Sound level comparison with logitech m170. Measured by an independent lab and verified by quiet mark. Battery life may vary based on your use. Enjoy the sound of silence enjoy the sound of silence. With the same click feel and over 90 per cent noise reduction on the click sound, enjoy a quiet experience for yourself and those around you. Sound level comparison with logitech m170. Measured by an independent lab and verified by quiet mark. Simple. Reliable. Strong. You get a reliable connection up to 10 metres 33 feet away thanks to the plug and forget nano receiver. M220 silent also features logitech advanced optical tracking for precise moves on almost any surface. Actual wireless range may vary based on use, settings and environmental conditions. 18 month battery life you can go for up to 18 months between battery changes thanks to energy efficient engineering. Plus, m220 silent automatically puts itself to sleep when not in use. Battery life may vary based on your use. Comfortable ambidextrous shape. Mobile size. The ambidextrous design offers more comfort and precision than your touchpad. Its small size is suitable to toss in a bag and go.