This Esperanza Optical Mouse will be your best companion for all your computing needs. The mini wireless receiver can be stored in the mouse to prevent loss, and it is convenient for use during traveling.
Specification 800/1200/1600DPI resolution Radio Frequency: 2402MHz-2480MHz Range: 10m Powered by AAA*2 batteries(battery not included) Receiver interface type: USB 2.0 Power saving module designed System compliance: Windows 98/Me/2000/XP/Vista/7, Mac OS 8.6 and above.
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