- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
Device used to drive spores out of the colonists on planet Omicron Ceti III. The frequency sent out by the transmitter irritated individuals exposed to it as those itching powder had been applied to their bodies.