- 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
A piece of communications equipment used by the women living on the second planet of the Taurean system. This device was capable of sending faster-than-light signals across many light-years of interstellar space, and delivered an irresistible "siren song? that ineluctably drew male humanoids to the Taurean planet. On stardate 5483.7 (2269), the women on the Taurean world used this device to lure the U.S.S. Enterprise's male officers to their world in an attempt to drain and consume their life energies.