The button for on / off the alarm is integiert in the key for Snooze / lighting. Unfortunately, both buttons are hooked into each other. If one assumes about the well-deserved weekend, the alarm and operated at night once the lighting, the alarm start. Andersrum it can happen that you accidentally turn off the alarm. This leads to restless nights, because you know not whether a thing the next morning actually awakens. I had to dispose of the device after a few days in the garbage. What micht especially upset: 1) How can it be that at all comes as a poorly constructed device on the market? 2) How can it be that "design reddot award" something also with the will and the "product design award"? Too bad, because the Braun brand was long years of good design that works well. What reassured me: That the guy who designed this thing, is not landed with a manufacturer of nuclear power plant control panels or the like.