Cross-border first choice: 2019 popular glow mask (10 colors are optional, large quantity and high price) Both standard and voice control models need 2 no. 5 batteries (all products do not have batteries, customers need to bring their own). The exit is very safe. ? Standard mode: always on, slow flash, fast flash, off Voice control mode: always on, flash, voice control, off Mask size: 22X17CM Mask material: environmental friendly PVC material Luminous masks? (el? Wire? Mark) Power supply mode: 3V-2AA (no. 5 battery) Luminous color: red, orange, yellow, green, white, blue, purple, pink, transparent blue, fluorescent green (ten colors any), the specified color please contact customer service, large quantity discount, factory direct sale.