TECKNET Wireless Mouse, 2.4G Ergonomic Optical Mouse, Computer Mouse for Laptop, PC, Computer, Chromebook, Notebook, 6 Buttons, 24 Months Battery Life, 2600 DPI, 5 Adjustment Levels

Compact Design, Go back and forth Friendly:With the dimension of 4.09*2.68*1.49 in, this compact mouse provides more portability and a greater Go back and forth experience.
Ergonomic Design, Comfort Grip: The contoured shape of this mouse is ergonomically designed to suit the natural curve of your hand, ensuring lasting comfort and productivity. Featuring rubber side-grips, it offers added thumb beef up for a pretty good working experience.
Advanced Optical Tracking: Featuring 6-level adjustable DPI (800/1200/1600/2400/3200/4000), this mouse provides high-performance precision and smart cursor keep watch over on most surfaces.
24 Months Battery Life – Combined with a power-saving mode and on/off switch, this efficiently engineered mouse grants you as much as 24 months of battery life.
Plug and Play: Simply plug the USB mini-receiver into your Windows, Mac, Chrome OS, or Linux computer and enjoy seamless connectivity as much as 49 feet.
Notice: Please take note that the AAA batteries aren’t included. The USB receiver is stored in the back of the mouse.