These are shock devices used on kids. They are attached to the kids so that adults can shock them whenever and for whatever they want. They are primarily used on kids with autism....
https://goo.gl/ZAzZZ3The Food and Drug Administration (FDA) is extending the comment period for the proposed rule that appeared in the Federal Register of April 25, 2016. In the proposed rule, FDA requested comments for a ban on electrical stimulation devices (ESDs) used for self-injurious or aggressive behavior (SIB or AB). The Agency is taking this action in response to requests for an extension to allow interested persons additional time to submit comments.