Feature:1. App controlled:There is a QR code in the product manual. The software called \"Magic Screen\" can be downloaded from the mobile app store. You can design any text or pattern you want. Please refer to the manual for details2. Rechargeable \u0026 Wireless:Very small lightweight USB rechargeable battery \u0026 flexible LED matrix panel are safely secured inside so you dont have to worry about losing any pieces. Mask charge lasts up to 8-10 hours! Whether worn into a store for a few minutes or to a music festival.3. Safe, Breathable \u0026 Adjustable: Made with high quality breathable fabrics that are SOFT, SAFE \u0026 COMFORTABLE to wear for extended periods of time. With the soft elastic adjustable ear loops you can adjust for the perfect fit!4. Application: festivals, raves, parties, Halloween, costumeSpecification:Features:App controlled:There is a QR code in the product manual. The software called "Magic Screen" can be downloaded from the mobile app store. You can design any text or pattern you want. Please refer to the manual for detailsRechargeable & Wireless:Very small lightweight USB rechargeable battery & flexible LED matrix panel are safely secured inside so you don’t have to worry about losing any pieces. Mask charge lasts up to 8-10 hours! Whether worn into a store for a few minutes or to a music festival.Safe, Breathable & Adjustable: Made with high quality breathable fabrics that are SOFT, SAFE & COMFORTABLE to wear for extended periods of time. With the soft elastic adjustable ear loops you can adjust for the perfect fit!Application: festivals, raves, parties, Halloween, costumeSpecifications:Battery: 450mahUSB charging: 5V, 1ANumber of lamp beads: 512Lamp bead model: rgb212Charging time: 2HDisplay color: full colorMode: Bluetooth editingLanguage:Support Chinese,Traditional Chinese ,English,German,West Ban,Portugal,Japanese,Korean,Russian,French Multilingual LanguagePatterm: Various animation patterns,support DIY patternsText Edit: Suppor multi-language inputGraffiti Edit:Creative graffiti displayDisplay mode:Fixed,left,right,up,downn,blinking,reverse font,snowflake,boldMusic mode:Music playback+music rhythmMask size:W 12cm,L 19cmPackage size:20*14*1cmPacakge weight:55gPackage list:1* Face Mask1* Usage manual1* Transparent Storage bagPackage List:1* Face Mask1* Usage manual1* Transparent Storage bag