Hasbro Year 2011 Transformers Movie 3 "Dark of the Moon" Series Electronic Accessory Set - Robo Power OPTIMUS PRIME Cyber Helmet with Cybertronian Warrior Deco, 3 Modes of Play (Voice Changer, Battle Phrases and Conversion Sounds) Plus Straps for Adjust Fit Includes: Robo Power OPTIMUS PRIME Cyber Helmet with Cybertronian Warrior Deco, 3 Modes of Play (Voice Changer, Battle Phrases and Conversion Sounds) Plus Straps for Adjust Fit Strap adjusts to fit head sizes age 5 through adult Require 3 "AA" batteries. (Included) For age 5 and up **Note**: This helmet is a toy and does not provide protection