Decibel sensitive users will appreciate the addition of the KMW-400 to the brand's line up: a mouse that delivers the same precision, durability and "click" performance virtually noise-free. This quiet mouse lives up to its name, by providing an operation which is 90% more silent than traditional input devices. Its frictionless base smoothly glides across any desktop. Quiet, inconspicuous and curiously practical, this ergonomic mouse is the best choice for the busy office, public spaces, and late night projects