The PiepEi Swiss plays three different melodies for three degrees of hardness: SWISS NATIONAL ANTHEM - for wimps MIN VATER ISCH EN APPENZELLER - for medium-soft eggs WILHELM TELL OVERTURE - for hard eggs As precise as a Swiss watch. Voilá — the PiePei Swiss! Too soft, too hard — but never to the point. Perfectly cooked eggs are a science in and of themselves. But that's no problem for PiepEi Swiss. Simply store with the eggs, cook together with the eggs and wait until the PiepEi Swiss sings. No matter what water temperature you start with and no matter at what height you cook, the egg will be perfect.