Good advice, except that I’d try whenever possible to get AA/AAA devices rather than button cells. Not only do the button cell devices burn through batteries, causing a maintenance headache if you have a non-trivial number of devices, but the rechargeable battery ecosystem is much better developed for AA/AAA. We’re currently working on swapping out all our button cell remotes, especially.

Also, the replacement process on the button cells tends to be so fiddly - tiny screws, tiny little doors, etc.