ESPERANZA EM126EW OPTICAL MOUSE WHITE
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.
Radio Frequency: 2402MHz-2480MHz
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.