WIRELESS CORDLES 2.4GHz MOUSE Wired Optical Mice USB DONGLE SCROLL PC LAPTOP Pad
USB dongle size: 20x14x6mm. Step2: Take out the USB Nano Dongle, and close the Battery Cover. Step3: Plug the USB Nano Dongle in the USB Port. Step4: Then the mouse will connect with the dongle automatically and start+ working.