The NanoKey A VERY small straight Key kit, a much smaller version of the Flat Pack Key, a Fun and easy to build project. £6.50 Quantity: at £6.50 each Add To Basket Back In Stock Now! There are times when you want a simple low cost Morse key that can be taken out in the field or backpacking whithout adding extra weight or taking up lots of backpack space. The Nano Key is one of the smallest Morse keys I have seen, its a fun project to build that really works well. the user can adjust the gap of the key to suit their own personal tastes. Just one PCB socket to solder and the rest is straight forward assembly work.