Product descriptionPackage content: 1*LED luminous hat 【3 Illuminated Modes】The LED festival Baseball Cap has 3 glowing modes: Always One, Slow Flashing, Fast Flashing.Adjustable hat circumference: 50cm-58cm. 【Battery Included】Our Led Baseball Cap has two types of batteries to select from, and it's: ① Rechargeable Battery, which can be USB recharged. ② Replaceable CR2032 lithium Battery, which can continue operating for up to 30 hours, and it's also sold inside the festival cap. 【High-quality Materials & Easy to Use】This festival hat always use light and soft material, And this Party LED Baseball Cap is odorless, won't smell, and the wiring and battery are sewed and fixed. The "On / Off" switch is concealed in the brim. There is a small dot sticker to notify you where the switch is! 【High-quality Materials & Easy to Use】This festival hat always use light and soft material, And this Party LED Baseball Cap is odorless, won't smell, and the wiring and battery are sewed and fixed. The "On / Off" switch is concealed in the brim. There is a small dot sticker to notify you where the switch is! 【High-quality Materials & Easy to Use】This festival hat always use light and soft material, And this Party LED Baseball Cap is odorless, won't smell, and the wiring and battery are sewed and fixed. The "On / Off" switch is concealed in the brim. There is a small dot sticker to notify you where the switch is!