Water-soluble circuit boards could cut carbon footprints by 60 percent Infineon Technologies is trialing the PCB in demo units ahead of a potential wider rollout.

Single-use electronic devices pose a challenge, as the heavy metals and other toxic materials in them shouldn't just be released into the environment, yet those substances are difficult to reclaim ...

I am considering replacing the speaker with a lower wattage speaker, say 0.2 watts. I know very little about how circuit boards work. Which of the two scenarios is likely after replacement: A.