Logitech Unifying Receiver

One receiver - 6 Devices Smallest Unifying receiver. So tiny that you can leave it in your notebook, so there's no need to unplug it when you move around. Use this stand-alone USB Unifying receiver to replace a lost one. Additional receiver for logitech dual connectivity devicesAdvanced 2.4 GHz wireless technology provides a powerful, reliable connection up to 33 feet (10 meters)