How do I know which Remote Pro was shipped? Didn't realize a "2nd Edition" existed!

I'd expect the invoice to specifically call it 2nd Edition if that's what was ordered.

Be careful what you wish for.  If you get the 2nd Edition, you'll find it has no earphone jack, so if you want to use it for remote listening you'll have to get some Bluetooth earphones.

It does now have backlit keys and supposedly a rechargeable battery with more capacity.  The programmable keys are different too.