Product Name: Optical Fiber Luminous Mask
Product Color: White/black
Product Material: Nylon 
Product Size: 19*10CM 
Product Weight: 0.06KG
Product Function: 7 Color Changes
Power Supply: USB Recharge 3.7V 
Battery Capacity: 400mA
Instructions for use: Turn on the power and press the switch, press once to change a lighting mode, a total of 11 modes, press again or long press to turn off the power
Charging Time: 2-3 Hours
Working Hours: 6-8 Hours