To be confident in its use, you need the perfect level of distraction noise. Just enough to cover
spectators from hearing the voice real time, yet just under the amount that would drown out the
voice production in the playback recording.
There are sleeveless ways to use this, but it
appears a bit more unnatural and I won't use it that way.
When you can pull it off, it is
hard hitting, but I hate going into a situation wondering maybe.......
I would pass on this
product based on practicality/price.