With this coolest voice changing device you can sound as a robot, a zombie,a super loud being, or anybody whom you can imagine playing with your siblings or friends. Kids Voice Changer by Scientific Explorer adds extra fun to any spying game, home video taking, scary show production, or any other role playing. To change your voice you need to speak through the Kids Voice Changer, and your family and friends will not recognize who you are! The voice changing Infinity Voice Encryptor features the alpha switches to the unlimited sound adjustment. This kids voice modifying device from Educational Toys Planet can also be a great accessory for your Halloween costume or other costume party. The voice changer requires a 9V battery (included).