Logitech M275 Wireless Mouse

Comfortable right-handed contoured mouse: Unique curved shape guides your hand into a natural position
18-month battery life: Go longer between battery changes (battery life may vary depending on user and computing conditions)
Logitech Advanced Optical Sensor: Smooth cursor control, precise tracking, and easy text selection
Small plug-and-play wireless receiver: Simply plug it into a USB port and the mouse automatically connects to your computer
Wide scroll wheel: more surface area for effortless scrolling line by line or page