"You don't know the power of the dark side!" Imagine commanding the battle like a powerful Sith Lord with this Darth Vader Voice Changer Mask inspired by the Star Wars Galaxy. Use the voice-changing feature on the electronic mask to speak in Darth Vader's signature voice. Enter the world of Star Wars and launch into action and adventure with out-of-this-world sound effects. This electronic toy is authentically detailed and designed to fit most head sizes.