"1 / f fluctuation"
"1 / F fluctuation" included in the tone of a long time. It is scientifically defined as the sound of the natural world that people feel comfortable, such as the flow of Ogawa, the sound of the waves, and the bird of the small bird.
You can use it on your favorite door, such as the entrance, rooms, and refrigerators. As the sound is not very big, you can use it with apartments.
Production area: Toyama Prefecture
Body size: Width 30 × depth 50 × height 90 mm
Frame: with aluminum magnet
Color: (· い (い)
How to install: The back side is a magnet, so it is easily mounted if it is a door with a magnet. If the door to be installed does not stick with a magnet, the attached metal plate (with double-sided tape) can be attached with a tape or an attached nail.