Before you break it, read this. I’ve been using it for several years and was ready to buy another one for 2 reasons: first, I didn’t know how to set it up, and second, because when the power went out it lost its settings. I was ready to buy a different one, but I said I’d look into it a bit because for this money I couldn’t find anything that convinced me it would be better. And I found the following: first, the user manual for a similar model that also applies to this one
chrome extension://efaidnbmnnnibpcajpcglclefindmkaj/https://www.emimikos.gr/Documents/LIFE%20NOBLE%20BAMBOO-MANUAL.pdf
and second, that inside the battery compartment (which, okay, they don’t last very long and it doesn’t make sense to put rechargeable ones in because it can’t charge them) and underneath the batteries there is a second little door that opens by unscrewing 2 small screws. Inside there is a CR2032 battery. (See photo) This is what keeps the settings in memory when it is disconnected from the power. And I wrote so much for such a trivial matter, but I hope I helped at least one person a little.