Answer:
Voiceless it cries, Wingless flutters, Toothless bites, Mouthless mutters. What is it?
It can cause deflation of tires when dropped from the rear of spy cars.
Hard to catch, easy to hold. Can't be seen, unless it's cold
There are several different kinds, but the one you pick doesn't do its job. What is it?
I have an eye but cannot see, You'll head inside when you see me.
What an fill a room but takes up no space?