EMP Beacons, short for Electromagnetic Pulse Beacons, were devices designed and created by Avery the Bear of the Sand-Blasters. Set in place around Sand Blast City, they were built to temporarily disable the cybernetic implants of the Great Desert Dark Egg Legion. Bunnie Rabbot-D'Coolette ran afoul of such a device during one visit to the city, and ended up being captured by the Legion as a result. (StH: #217)