Adjustable Smart LED Cap Snap closure design, size adjustable to fit the head circumference of 22-27 inches, you can easily adjust to the right size.
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Detachable LED Sign Hat This LED cap flexible light board can be removed. When you need to clean your hat, remove the LED screen and battery first. The flexible light board can also be used to display dynamic information on clothes, shoes and other products.
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Rechargeable LED Hat Caps Built-in rechargeable lithium battery, can be fully charged in 2-4 hours, normal use of 6-8 hours (brightness 50%). It is recommended not to use in rainy days to prevent the danger of entering short circuit or damaging the product.
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