The item "Mason Jar Speaker" that I would like to recommend to such a kind bandman was developed by Trash Amps in the United States. Overseas media TAXI reports.
"Mason Jar Speaker" is a glass bottle with a speaker attached to the lid. Not only can you store ingredients in it, but you can also use it as an external speaker by connecting it to your smartphone or computer and playing music. Also, if you connect it to an instrument such as an electric guitar or keyboard, it will also play a role as an amplifier. It's a multi-purpose glass bottle.
Trash Amps is a company that manufactures and sells speakers made from recycled empty cans. This "Mason Jar Speaker" was newly developed using environmentally friendly materials such as glass and wood, considering that a large amount of plastic is being disposed of in the waste disposal plant and the sea in the United States. That's right.
Once the knife is sharpened and Bandman retires, the speaker can be used as a rice bin or candy box. It is an eco-friendly item that I really want to spread around the world.