For anyone that is balding but wants to keep their hair very short, I have been rotating between 2 Panasonic wet/dry beard trimmers for the last 10 years.

It is wireless, adjustable and I shave my head in the shower.

I have this older model and it is great but I do not know about the newer versions.

https://shop.panasonic.com/personal-care/mens-shavers-and-gr...