Product Overview : This is 2.4 GHz Wireless USB Mouse for Computer Laptop. This is a mouse with Optical technology which guarantees the accurate response and ultra-smooth tracking. This is a elegant, portable and eyes catching design. This design is the best to use the precision movements of the hands. This mouse has scroll option. 2.4 GHz Wireless Optical Mouse Receiver (In Battery Section) Buttons With scroll wheel (2 Buttons + 1 Scroll wheel + 1 DPI Button) USB Interface Built-in Mouse Memory, No Re Coding Is Needed After Battery Replacement. Plug Play Comfortable In Using, Can Be Used Any Surface, Even Glass Also No Problem. Power by 2 x AAA Batteries (Not Included) Work distance: Within 1 meters, Compatible With Windows And Mac OS. Scroll Easily In Any Direction Wireless Technology Works On Most Surfaces Package include : 1 x 2.4 GHz Wireless Mouse(batteries not included) (Mini receiver is inside the battery compartment )