Basically as the title says. We have semi frequent power outages where I live. The noise machine in my daughter’s room goes out and wakes her up. If I were to buy a USB powered one, plug it into a power bank like one of those 10000ma ones you get for charging cell phones, would it have continuous power. Basically like a cheap UPS
Would a home battery backup be overkill? If you have frequent outages it might be worth looking at something from EcoFlow ($) or Tesla ($$) to provide power when the grid fails. Other vendors exist besides those two of course.
Yea I’ve looked at this stuff before. Usually the outages aren’t that long, more of an annoyance than a problem. I’ve got some UPSs around the house to keep the tech gear going, just looking for a cheap solution to the noise machine shutting off