galaxyhkt cosplay EL Light Up dj dance Sound shake Activated led party mask Flashing mode:Sound shake Activated flash One size fits most use off 2AA batteries. Batteries Not Included Stereoscopic and Perspective,Using a wire switch Clip the power pack securely to your pocket or clothing Comfortable, padded fit conforms to the curves of your face The product is suitable for: outdoor sports, night running, large festival party, concert, promotion, support, employee benefits, the company large activity, etc. Luminous uniform and delicate, bright colors