This product is a very scary Halloween mask, which is very suitable for wearing on Halloween. Buy and wear this mask to make you stand out from the crowd. Battery type: 2x AA battery (not inculded) Size: 19 x 17 x 8 cm/7.48 inches x 7 inches x 3.14 inches Mode 4: Close, Fully Open, Slow and Fast Scintillation The mask is plastic and includes an elastic band that can be fixed to your head. The LED mask also has openings in the eye and nose areas Long life: 8000-12000 hours Useage : it is very special Halloween, Costume Parties, Masquerades, Mardi Gras, Rave Festivals, Carnivals, Gifts, Birthday and Events Perfect for Costume gifts or Masquerade Balls Parties decorations, Weddings, Prom, Boys Cosplay, Dance Recitals, New Year’s Eve, Halloween, Everyday Play, Carnival Queen Themed Party or any other party occasions! Please Note : The light up wire battery packs in have little noise, it is current noise for all this type mask , it is normal