The axiiio nano Receiver is the central hub that allows you to control up to 4 nano Motors wirelessly, and much more. It has a wide range of power and mounting options, extra IO ports, and is constantly improving through firmware upgrades. It's made from aircraft grade aluminium and super strong carbon fibre, and small and lightweight enough to be mounted on your camera's hot shoe. it's hard to believe that it can do all the things does.
Read more on the axiiio nano Receiver page.