Smoke watch. The idea and concept is brilliant, my dislikes are the noise and the extra vibrations
that are extremely noticeable by spectators. In a very noisy environment it’s not so much a problem
or on stage, but for closer work it’s simply too noisy . Also there is a time delay, so you cannot
instantly repeat it if you need to. I found the magic Smith tiny device to be a better option for my
use.