Logitech's new Cordless MouseMan Optical, which communicates its users' commands by sending radio signals to a palm-sized receiver that plugs in to a USB or PS/2 port at the back of the
Amazon.com: Logitech Cordless Optical Mouse USB, Black : Electronics
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Logitech Cordless MouseMan Pro Receiver w/ Mouse Model 1355 Vintage Free Ship | eBay