-Product Name: LED Luminous mask-Material: Fabric, Optical Fiber-Size: 17x9cm-Battery Properties: Polymer Battery-Battery capacity: 450mAh 3.7V-Battery life: 500 cycles or more-Input voltage/current: 5V 1A-Charging type: USB cable-Fully charge time: 1-2 hours-Work time after fully charged: 6-8 hours-7 Colors: red, green, yellow, blue, light blue, pink, white-11 working Modes-Functions: Flash, Gradual, Smooth, Polychromatic.Features: Rechargeable, 7 Colors LED Light, Soft, Breathable, Comfortable，Can replace PM2.5 filter paper and reuse.Description:LED lighting, 7 color variations11 gear changes, fashion coolDust-proof, waterproofNight warning, securityCharging mode, environmental protectionAdjustable mouth mask strap which fits all users.Complimentary 1 pcs of PM2.5 activated carbon filter paperCan replace PM2.5 filter paper and reuse.Perfect for Halloween, Parties, Masquerades, Carnivals, Night Running, Prom, Concert, etc.