2.4Ghz Wireless optical mouse from the NGS Haze series. This model offers 2 buttons and a scroll wheel that doubles as a 3rd button. An extra button on the top of this mouse will allow you to switch between 800 and 1600 DPI. Its small and ergonomic design is suited for both left and right handed. Powered by 2x AAA batteries (included). Backed up by 2 years manufacturer warranty.