How to use: First, put on the helmet using the adjustable straps for a proper fit. If you want to use the voice changer feature, insert 3 AAA batteries (not included). Then, speak into the helmet to hear your voice transformed into the villain's voice. You can use it for role - playing or just to add some fun to your day. For display, place the helmet on the included stand. Attention: Make sure to handle the helmet gently to avoid any damage to the detailed design. Keep the helmet away from sharp objects. Maintenance: Clean the helmet with a soft, dry cloth. Do not use any harsh chemicals or abrasive materials as they may damage the paint and finish. When not in use, store it in a cool, dry place to prevent any deterioration.