The Spy Gear Voice Changer lets you amplify or disguise your voice with 8 unique voice-changing effects to distract friends and family. Confuse or distract enemies by speaking into the microphone and holding down the activation trigger. Choose from 8 different effects: Megaphone, Alien, Chipmunk, Cyborg, Ghost, Echo, Spy and Man! The Spy Gear Voice Changer is made for agents 6+ and requires 2 AA batteries for operation.