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, Shuttle Friendly – With the dimension of 4.09*2.68*1.49 in, this compact mouse provides more portability and a greater Shuttle experience. Only compatible with USB-A Port Devices.
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 enhance for a superb working experience.
Advanced Optical Tracking – Featuring 5-level adjustable DPI (800/1200/1600/2000/2600), this mouse provides high-performance precision and smart cursor regulate on most surfaces. ( Glass surface is Not included )
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-A mini-receiver into your Windows, Mac, Chrome OS, or Linux computer and enjoy seamless connectivity as much as 49 feet.
Notice – Please consider that the AAA batteries don’t seem to be included. The USB receiver is stored behind the mouse.