Use of cocktail

My husband died recently he always used our cocktail, I cannot use it, will you please advise?  The battery has been
replace in the remote control.
You'll need to find the exact model number on it.  Either on the face of the unit or around the back on a sticker.

Here are the manuals for their units:

Sorry for your loss.
Mofimadness’ prior post another example of why I cited him as one of my favorite Audiogon posters in the “favorite Audiogon posters” thread.