Now you can sound just like a Chipmunk with the Alvinizer Voice Changer. Hold the Alvinizer in your hand just like a walkie talkie and press the button on the side. When you speak into the front of the Alvinizer, your voice gets higher and is amplified out of the speaker to sound just like a Chipmunk! Everything you say into the Alvinizer sounds just like Alvin and his brothers. You will feel like you're one of the Chipmunks with the Alvinizer Voice Changer!