comes on when this boiler is in operation. Quiet, yes it is really quiet. Equally we had always wanted. Also, the overall handling is great: filling is simple and easy to dose, the display works; pouring is also flawless and without drops; the boiling goes really fast and is easily visible through the blue glowing ring. The package was a bottle with this descaling. Strong buy recommendation. ADDENDUM 2 month later the kettle has become louder despite descaling and the lid opens during the cooking process independently. That's impossible, which then the kettle does not switch off by itself. Even in our model, the metal begins at spout easy to rust. No more buy recommendation!
