This is my third cobalt blue Chantal tea kettle since 1990. The first two were beautiful, with the two-tone harmonica working great. I purchased this one in the fall of 2021 in anticipation of my move in the summer of 2022 to a new home in retirement. I was first disappointed to note that the color is a very dark navy, not the pretty, bright cobalt of the past. After a couple weeks of unpacking, I finally decided to boil this kettle to find there was only a slightly muted sound. We tried adjusting the screw several times to no avail. In fact, now I hear no sound at all. I also tried boiling a solution of water and vinegar, which also proved fruitless. I threw away the box with all my moving chaos, so I don't even know how to return this.