Features: There are 4 control modes: steady light, flashing, sound effect, off. This mask is made of high quality PVC and cold light, no UV damage, no side effects on the human body. Secure the power cord clip to your pocket or clothing. Masks can be used for any occasion, such as parties, parties, discos, birthdays, festivals and events. Available in a variety of colors for a variety of occasions. Note: Due to the different screens, the colors may be slightly different than you might expect. Specifications: Product Name: Luminous Mask EL line color: as on shown Battery powered: 2 * AA batteries (product does not contain batteries) Light color: blue, green, fluorescent green, yellow, pink, red, white, ice blue, purple, orange optional Package Size: 18 * 16 * 5.5cm / 7.1 * 6.3 * 2.2in Package Weight: 95g / 3.4oz Package List: 1 * Mask (10 colors optional) 1 * Controller (not contain battery)