ONE RECEIVER – 6 DEVICESConnect up to 6 compatible keyboards and mice to one computer with a single Unifying receiver – and forget the hassle of multiple USB receivers.TINY. LEAVE-IN RECEIVEROur 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.LOST YOUR UNIFYING RECEIVER?Use this stand-alone USB Unifying receiver to replace a lost one. It's compatible with all Logitech Unifying products (look for Unifying logo displayed on compatible products)ADDITIONAL RECEIVER FOR LOGITECH DUAL CONNECTIVITY DEVICESUse an extra Unifying receiver to connect a dual connectivity mouse or keyboard – or both – to a second computer. Then switch from one computer to the other with the push of a button for efficient multi-tasking. It can also be a great add on for your Logitech Flow setup.LOGITECH ADVANCED 2.4 GHZ WIRELESS TECHNOLOGYAdvanced 2.4 GHz wireless technology provides a powerful. reliable connection up to 10 meters away with virtually no delays or dropouts.