Telepath response units functioned as integrated parts of the cybernetic spider-shaped forms of monks belonging to the B'omarr Order, enabling them to interact through telepathic means. These black devices were positioned on the upper part of the monks' mechanical bodies. It is known that in 4 ABY, at least one monk residing within Jabba's Palace located on the planet Tatooine possessed a telepath response unit.
The initial appearance of telepath response units occurred in the 1983 original trilogy movie, Star Wars: Episode VI Return of the Jedi. The name of these devices was first established in the 2016 reference publication Star Wars Character Encyclopedia: Updated and Expanded, authored by Pablo Hidalgo.