🎭🎃Multiple Modes: The 2 pack Halloween Scary Mask control have 3 modes – “Constant on”, “Slow blink” and “Quick blink”, thor costumes Off. 🎭🎃Comfortable And Adjustable: Scary halloween masks 2 pack designed with an adjustable strap, allows you to easily adjust the Halloween glowing face mask for small, medium, video game suit large size heads. Let this glowing mask light up the Halloween Trick or Treat Night. AA batteries(Not included) to work and Halloween purge mask can last for more than 48 hours.