This is one of those effects where I liked the premise but upon receiving the gimmick it's not
something I would use.
That doesn't mean it's not good for you...it's just not my style. One
thing I will say is there's a 5 second delay before the "voice" is heard which isn't a lot of time.
Even in the demo video the voice starts talking before he can get finished on the set up which is
one of the flaws that prevent me from performing this. I was going to use this in a Spook Show but
I've now changed my mind.