This HP 3-button optical USB mouse is an ambidextrous (for right and left handed use) three-button optical mouse that plugs into a USB port. Its simple and elegant design is contoured to ensure the user's comfort. It uses an advanced optical sensor from Agilent Technologies. This high precision mouse glides across most surfaces, recording motion optically without a ball or rollers.These optical mice have a tracking system that works through light which means that there are less moving parts for greater durability than ball-based mice. The optical sensor within the mouse employs a scan rate of up to 460dpi. This optical system guarantees crisp motion tracking on many types of surfaces without a mouse pad. Without a ball or roller to clog up, it works without cleaning.
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