SIIG's 2.4GHz Wireless Optical Mouse - Black provides smooth and precise navigation with great wireless convenience. The advanced 2.4GHz wireless technology allows longer range of operating distance without the hassle of tangled wire. Built-in scrolling wheel offers fast navigation for general operations or web browsing. Compact palm size design is light and easy to carry. This wireless optical mouse is a great tool to meet your everyday computing demands at an affordable price. JK-WR0C12-S1