Thanks, I understand now.

I really do like the OFA x820 series of remotes, and had been pondering a spare anyway, so I'll likely try to acquire another one. Too bad they seem to be drying up in the sales channels.

Are there any distinguishing features to help discern the N version from the B00 from just a glance at an unopened package? I believe I saw somewhere that the "O" in the logo is black instead of red. It also appears that the packaging may have a red motif instead of the older blue motif.

I don't want to mistakenly buy a B00 instead of an N, and this will likely have to be an online purchase, which carries the attendant risks, including misidentification, either intentionally or unintentionally, from sellers who aren't likely to be familiar with the nuances. It seems like most of these things are now sold by random "junk" or "NOS" stores.