The KMW-330 perfectly combines wireless freedom with the 2.4 GHz cordless technology. Armed with a high-definition optical sensor, it delivers great responsiveness, precision and smooth tracking. It features an ultra-compact dongle and a convenient power on/off switch designed to extend battery life. Ergonomic, lightweight and in 3 different colors to choose from, this mouse is not only a modern accessory, but also one of the sharpest you will ever find!