A folding digital kitchen scale that uses kinetic energy to help you go battery-free
If you don’t always measure ingredients in the kitchen, you might want to get a scale that doesn’t take up space or even needs batteries…
battery-free
Clean Teeth, Clean World!
https://www.kickstarter.com/projects/goodwell/be-the-first-battery-free-powered-toothbrush Picture this. Count the number of products you own that use batteries. Multiply it by 7.3 billion. That’s roughly the number of battery-powered products…