Specifications: 100% Brand New and Good Quality Head Circumference: 60 cm Item Type: Luxury Iron Man Mask Helmet Theme: Iron Man Gender: Unisex Adults Style: Full Mask Occasion: All Occasion Material: ABS, Resin Main Color: Sliver Packing: Boxed Function: Multi-chip, Integral Opening and Closing, Voice Control, Remote Control Helmet Battery: No.5 (AAA) Battery X4 Remote Control Battery: No.7 (AAA) battery X1 (The battery needs to be prepared by yourself, please choose a brand new battery with high power.) The battery case is hidden behind the black pad on the rear cover Please remove the back cover before wearing Instructions for Use: Voice Control: Please refer to the manual for details. Remote Control: Install the 5# battery (the battery box is hidden on the back of the black cushion on the back cover), and turn on the power switch on the chin of the mask. Left button, full face mask switch, right button, segment switch, up button to change eye color, middle button to change eye light, down button to turn on headphone sound effects, back button is the power switch button. Manual Control: You can manually touch the headphone earmuff switch, touch the left earmuff overall switch, touch the right ear fragment switch cover Touch the right ear to control the multi-piece opening and closing of the mask Touch the left ear to control the overall opening and closing of the mask Fault Analysis: First: If the password fails to match, try again after charging the remote control. Second: The eye light continues to flicker slowly, or the motion is slow and the sound is blurry, because the battery is low, you should replace the battery. Third: If the operation fails or something abnormal occurs, restart the system. Fourth: Put on your helmet, auto detect failure, reboot the system. Package Includes: 1 x Iron Man Helmet Notes: 1. Measurement of the item lying on the table may cause 1-3 cm difference, please note the sizes for it doesn’t fit all people. Please view the details of the size information before your purchase. 2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness when photo taking. 3. When powering off or restarting, you must make sure the mask is off. Feedback: 100% Satisfaction: We will answer all eBay messages during our business hours (Monday-Friday 9:00 am to 5:00 pm GMT+8 except all Holidays). If you have any questions or doubts after receiving the product, please do not hesitate to contact us before leaving a feedback.