Wireless, 2.4GHz, 1000dpi, 5 Buttons, USB The sleek mouse with extra buttons, comfort and convenience of wireless technology in design with a miniature receiver. It is so small it can stay still in a notebook, so your mouse is always ready for use. Wireless transmission at a frequency of 2.4 GHz and provides fast, reliable connection with virtually no delays or dropouts. Optical scanning resolution of 1000 dpi enables responsive and smooth cursor control. The mouse is equipped with side buttons for easy web exploring (page back/forward) and Smart Link technology for easy automatic connection. Advanced power-saving technology brings an extremely long life with two AA batteries. The receiver plugs into a universal USB interface, where there is no need of any installation and the mouse is ready to work immediately.