I accidentally sorted out the products designed in 14 years and found this interesting small sound design. The starting point of this concept should be light and portable, easy to operate and use. So I came up with this concept product based on a small cylinder. According to the technical difficulty of that year, what cannot be overcome is how the knob part is light and smooth without damping feeling, and the atmosphere lamp transmission problem of the inner ring of the knob, so this product cannot be mass produced. Now that I think about it, it's not completely impossible to produce, it's just a matter of cost. There are also big-name manufacturers in the industry who are willing to spend a lot of money and have the ability to produce brand premiums. This product still looks interesting now, although many ideas are not mature.