Built-in battery (600 mA). You do not need to buy an AA battery. It is convenient for you
Ergonomically designed to relieve and prevent carpal tunnel syndrome. Use it to stay healthy
Optical laser technology for precise control. It is better than other mice on the market
Easy to use, comfortable to hold, prevent hand illness
Wireless mouse rechargeable USB ergonomic design for windows colourful LED light wired gaming backlighted ergonomic programmable buttons non-slip waterproof rechargeable noiseless whole desktop laptop PC.

Ergonomically shaped to give you a better grip.
Wireless design allows you to use it conveniently.
Offers tactile and stable clicks for precise manipulation.
Energy Saving Long standby large capacity lithium battery.
6 Functional Buttons Including left button, right button, scroll wheel, retreat, advance and DPI switcher.