3 Cool Light Modes "constant on , "slow flashing", "fast flashing". Let this bright mask illuminate the Halloween night Trick or Treat. Powered by 2 AA batteries (NOT included); Wide Application The cool mask is not only ideal for the Halloween party, but also perfect for EDM shows, Masquerade, Bar, DJ, interior decoration, Pet decoration, cosplay party, haunted attractions, Monster event , Carnival night, disco, clubs , carnival and night events; Ergonomic Design Set with Foam pad for sponge head inside, according to the principles of human body engineering, ensures comfortable use; Convenient to Carrylightweight, portable. When you wear Halloween masks, you can easily hold the battery controller in your clothes or store it in your pockets; After Sales Service We value the customer's shopping experience. If you have quality problems with our products, do not hesitate to send us an email. We will respond as soon as possible, no later than 24 hours.