The Sounditron is a prototype-securitron, which was created by Robert House before the Great War. Different from his standard-brethren he is equipped with a technology on his arms and shoulders, that resembles the sonic emitter from the Big MT. It never went into large scale production due to the fact, that Robert House couldn't find the right frequency for its weapons to work properly and so it was sealed amongst other technology in Vault 21. As Deaf Diode Jackson's signal infiltrated Vault 21 he found in the Sounditron the right vessel for his purposes. His link to the Big MT technology files made it possible for him to make the weapon systems of the Sounditron run properly.