SaiTech IT 5 Pack 3D Optical wired USB Mouse - Black 3D Optical wired USB Mouse in Black. Comfortable sense of clicking Fingers are tireless for hours of use Connectivity: Wired USB 1.5m long, Sensor: Optical. Ergonomic design. Scroll Wheel: Mechanical, Colors: Black,Plug and Play 1 Year Warranty Wired for battery-free operation. Design is suitable for use with either hand. Scroll wheel to speed through long documents or web pages. Wired Optical Mouse; USB Plug n Play Style Tracking Sensor : Optical LED. Buttons Qty : 3 (Left, right &amp; Scroll Wheel). Perfectly fits under your palm, provides you a perfect hand feel, gives gamers the most comfortable gaming experienece and makes you free from fatigue. Smooth andaccurate USB-connected optical mouse for the desktop and laptop. The optical sensor tracks movement on nearly any surface. Easy-to-Install: No drivers or programs required. Just plug it in and start using. Non-stick Feet for smooth and accurate movement on most surfaces. High-definitionoptical tracking enables responsive cursor control for precise tracking and easy text selection. It&#039;s highly portable, but not so small that it is uncomfortable to use. The design is classic, but ergonomic so you can use for<br> long periods of time without stressing your wrist or hand. Smooth andpreciseUSB-connected 3-button optical mouse. All the basic functions of a mouse in a comfortable, sleek design that works for left or right handed users.