Adjustable Programmable Upgraded LED Light Up Face Mask, Bluetooth App Controlled USB Rechargeable Wireless Masks with Text Editing

Specification Display size: 5.9*1.3inch Input voltage current: 3.7V, 450mAh Charging type: Micro USB. Charging time: 3-4 hours Battery Life: 8-10hrs (muti-language version) 15-20hrs (English version) Easy to use This Party Mask needs to be used with COOL CARNIVAL APP: Step 1: long press to turn on (or turn off) LED display and turn on Bluetooth of mobile phone; Step 2: open the app page and click Connect device, Step 3: after the device shows that the connection is successful, it can be used together. WARNING Do not use this product when charging; do not expose it to rain or moisture environment. NOTE Please send your message to us at amazon when you met problem ,we will give you the refund or send you a new product at the first time! Package Including: 1x half face Mask 1x usb Charging Cable 2x Gasket 1x Manual ?Warning: Keep away from fire!