Sounds weird that they would charge to not scare kids.
Sounds pretty pointless, because that way there still will be kids out there that do not have a necklace because their parents didn't want to spend the money that freak out when one of the scare actors comes along.
Therefore the actors still would hold back on all kids to avoid having one freak out.
Therefore you don't need a necklace in first place.
If they sell these its purely to make some extra $$, not to improve anything.
I enjoyed Night Beats and it definitely sounds better than the premise of this show.