1、3 Lighting Modes: Halloween Mask is composed of 3 lighting modes, steady light, slow flash, fast flash, you can change the mode by switching the button. 2、Cold Light Source: The electroluminescent film is a cold light source, and its operating temperature is lower than that of fluorescent lamps. No adverse effects on the human body. You can clip the power pack to your pocket or clothes. 3、Elastic Band: An elastic band that can be placed around your head to hold it in place, adjustable to fit your head circumference. 4、PVC Material: The Halloween LED mask is made of PVC material, which is wear resistant and durable, good shock resistance, and can be used for a long time. 5、Applicable Scenes: This cool LED halloween mask is eye catching and shiny, suitable for adults and children, unisex, perfect LED mask for many occasion, such as LED mask party, carnival, cosplay, halloween, costume, scary ball Wait. Item Type: LED Skull Mask Material: PVC Product Size: Approx. 25 x 6.5 x 16cm / 9.8 x 2.6 x 6.3in (±2cm / 0.8in) Battery: AA Battery x2 (Shipped Without Battery) 1 x LED Skull Mask