1.It is made of PC and cotton flannel with good texture. hook and loop fastener makes it firm and easy to wear. And the mask is light and easy to carry. 2.The LED light on the surface of the mask can change along with the background sound. 3.The sound controller is powered by 2 x AAA batteries(not included). 4.Applications: Bars, dance parties, evening games, concerts, conventions, Halloween party and other interactive occasions etc.
