Power off Phantom?

[Dvlt PhD]

I have them on 24x7 and no issues. What is this misbehaviour you're referring to?

These are some problems I've noticed. Not all at once and no pattern displayed.

Delay (1-2s at worst) between picture and sound (sound coming after picture).
Spark freezes.
Distorting/metallic sounds comes and goes.
Dialog and phantoms get really hot over time.

In any case I would like to be able to turn them off somehow. Pulling the plug does not seem like the right thing to do.

Can you expand on the delay issue, please?

Thanks.