Graduated electronic decelerator
The graduated electronic decelerator (GED) is a torture device that delivers powerful electric shocks to the skin. Created by Matthew Israel for use on people at the Judge Rotenberg Center as part of the institution's behavior modification program, the device and the school's punishment program have been condemned as torture by the United Nations special rapporteur on torture.
Source: Wikipedia — Graduated electronic decelerator (CC BY-SA 4.0)