Logitech on Tuesday introduced the slim USB Unifying Receiver, a new approach made to pair up multiple Unifying-compatible wireless Logitech mice and keyboards. Thus far, Logitech's system includes the new K350 and K340 wireless keyboards as well as similarly new M705 and M505 mice. The USB receiver is shaped like the existing Nano Receiver and protrudes less than a third of an inch from the side
