Allenda asked for another conundrum and at 3 a.m., rather than sleep, I decided to attempt another one.  Here it is. I’ve given the answer at the very end of the comments, so those of you who still want to guess won’t receive any spoilers.  Go ahead and guess in comments if you wish because there are enough comments that it won’t spoil it for anyone else now unless they choose to know.

Conundrum II

To hear of it, you’d think it’s made
to come to Louie Armstrong’s aid.
Yet it plays no music, surprisingly­­––
the lips not where it’s meant to be.

It has a tongue that does not talk.
Sounds like it should, but does not walk.
Although it helps out one that does,
it never leaves the room because

it has no means of a conveyance,
keeps your frustration in abeyance
so you can walk both tall and proud
though for itself, it’s not allowed.

What is it?