Kensington 64321 Wireless Mouse Studio Optical Mouse USB, Brand New DESCRIPTION Wow. Finally a real reason to go wireless. DiamondEye™ Optical Technology with the pinpoint accuracy you need - and no wires to get stuck or tangled. Add the simplicity and savings of a battery-recharging cradle, and it's easy to see why StudioMouse® Wireless is the ideal tool in form and function.