About Product :- ENJOY THE SOUND OF SILENCE Get all your work done without missing a beat or disturbing those around you. Silent Mice have the same click feel without the click noise – over 90% noise reduction. Durable, high performance feet quietly glide over the desktop. A smooth scroll wheel completes the silent experience. Silent Mice eliminate excess noise while protecting the health and productivity of everyone. Make this your last annoying click. Your family and friends will thank you. ENJOY THE SOUND OF SILENCE With the same click feel and over 90% noise reduction on the click sound, enjoy a quiet experience for you and your neighbors. Plus, it has feet made of high performance material and a rubber wheel for quiet gliding and scrolling.CRAFTED FOR YOUR RIGHT HAND Designed with curved lines that provide a place to rest your thumb and improve control.24-MONTH BATTERY LIFE Go longer between battery changes thanks to energy efficient engineering. M331 SILENT PLUS automatically puts itself to sleep when not in use.SIMPLE. RELIABLE. STRONG. Enjoy a wireless connection up to 10m away thanks to a plug-and-forget nano receiver. M331 SILENT PLUS features Logitech® Advanced Optical Tracking for ultra precise moves on almost any surface. No hassle, no software needed. Works with Windows®, Mac, Chrome OS™ or Linux®-based computers.