This is a concept. This is only a concept. Had the Officeoriginar 'Iced Carafe' been an actual product, you would be alerted not to spend your money on it. It’s a carafe that is used to freeze ice on its side so you can have tall ice. It’s ice, it’s vertical ice. The designers brag that it will make your whole drink cold.
So how does one signal “I’m getting low here!” if you can’t swirl the cubes and make an annoying noise?