Features:

• Utilizing the latest optical sensing technology, the HP USB Optical Scroll Mouse records precise motion over a variety of surfaces without a mouse pad.
• Optical tracking - Reduce sticking and constant cleaning with optical tracking – a system that works through light with less moving parts for greater durability than ball-based mice.
• Users benefit from a smooth, contoured shape that fits both hands – and a wheel that functions as a third button.
• The optical sensor within the HP USB Optical Scroll Mouse employs a scan rate of 800dpi and enables crisp motion without a mouse pad, ball or roller.

Specifications:

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Specifications for the product series
Product Code	DTHPQY777AA
MANUFACTURER	HP
MANUFACTURER PART #	QY777AA
PRODUCT DESCRIPTION	HP USB Mouse
DEVICE TYPE	Mouse
CONNECTIVITY TECHNOLOGY	Wired - USB
MOVEMENT DETECTION TECHNOLOGY	Optical
MICROSOFT CERTIFICATION	Compatible With Windows 7
SCAN RATE	800dpi