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The 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 SDNS-2599 optical sensor from Agilent Technologies. This black and gray high precision mouse glides across most surfaces, recording motion optically without a ball or rollers.
Optical tracking is the latest advance in computer mouse technology. 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.