Input voltage/current: 3.7V, 450mah Power supply mode: lithium battery Product material: LED light, bottom cloth Size: 8.5 x 5.5 inch / 215 x 140 mm Color: black Charging method: USB interface charging Charging time: 3-4 hours Features:Capability: 16 Voice Activated Animations will display when you to speak the correct words. Animations Words: Hello, Bye, Good Morning, Good Night, Happy Halloween, Happy New Year, Hey Girl, Hey Man, Merry Christmas, No, Yes, Well, Whats' Up, V, X Product description The mask will flash and glow when you speak. It can be used for the maintenance of bars, parties and nightclubs. The built-in filter cotton can be replaced and filtered layer by layer to provide effective protection. USB cyclic charging, long battery life, can be reused. A variety of constant brightness and color + voice-activated lighting mode.Suitable for many occasions, such as: live concert scene, bounce scene, support group and banquet hall. Light-emitting Age recommendations: We recommend this product to children over 12 years old.Note: Warning: Keep away from fire! After fully charged, please cut off the power in time to protect the battery life.It can be cleaned, but the charging port should not be in contact with water!The best method: soak the fiber directly with a damp soft cloth. How to clean Mask: Mask cannot be submerged in water 1. Use soapy warm water and a small brush to to clean the outside and inside of the mask 2. Scrub the inside and outside of mask with soapy water. Then scrub with clean water to get soap out 3. Wipe mask with dry towel 4. Let mask air dry. Package include: 1* mask 1* PM2.5 Filter 1* charger cable "all Products From Us Have Undergone Strict Quality Checks. if There Is Any Quality Problem Or You Are Not Satisfied With The Product contact Us. we Will Give You The Best Solution."