Come and see our amazing products. Use single-button switch 7 colorful lights, 4 flashing modes.Just press the button on the battery to choose your favorite color & mode at any time. Pretty cool and attractive after wearing ,The power control of our Glowing mask includes 4 modes Monochrome,Flash,Gradual, Smooth,Polychromatic.The light is even and soft,and it will not cause tension,fatigue, and harm to the eyes.Comes with a rechargeable battery,Easily charge like your phone.USB charging for 1 hour will keep the light working for about4-6 hours.Under charge, red light blink, Charge finish,light keep off.Super wide and comfortable elastic straps can be adjusted to fit, comfortable for wearing.You can scrub with a wet towel (Please do not knead and twist ).Keep the battery away from water.Hand wash ONLY.hang dry in ventilated . Pls confirm further with us if any query about packing info, inventory status and time schedule.