Can anyone recommend a dead simple voice recorder?

I'm looking for a handheld voice recorder that's as simple to use as possible for my dad. His memory is starting to fail and I'm wondering if this would help ease some tension that that is causing.

He has trouble with tech these days so unfortunately using an app on a phone isn't an option. The hurdle of getting the phone out and app open would be too much and that's assuming he remembers to use it and HOW to use it.

I'm hoping for a device that just has a button that can be pressed or held down for short voice notes. I'm picturing the device being able to be plugged into a computer for saving the audio recordings. It would also be a huge bonus if there is some automatic transcription functionality that makes the notes searchable, though I bet there's software for that that doesn't have to come with or be part of the voice recorder itself.

I can see lots of cheap options on Amazon but before I just start buying some to try I'm hoping someone here might have some experience in this area.

I really appreciate any insight anyone is able to give.