Product name: LED optical fiber baseball cap Colors:picture colors Product type: party supplies Gender:Unisex Material: cotton hat, optical fiber ,led lights，battery box . Voltage:.6V Powered by : 2 pcs CR2032 batteries .(Included) Inverter function: Steady on/Slow flashing/Fast flashing/Off Application: Masquerade party，performance, birthday party, Halloween, carnival and other festival celebrations, cosplay , personalized decoration, etc. How to use: Open the battery box ,put 2 pcs CR2032 batteries in the battery box of LED cap,the outer side battery with positive down and negative up , the inner side battery with positive up and negative down .press the blue button on the top,the light fast flash ,press the button again ,the light slow flash ,press the button again ,the light on ,press the button again ,the light off . Package Including:1pc cap Type 1 Note: Due to the different display and different light,the picture may not reflect the actual color of the item.Thanks for your understanding. ★ If you are fromRussian Federation, please leavethe full name as the receiver name. Otherwise, you may not receive your parcel because of the regulation of customs. ★If you are fromBrazil, please let us knowCPF Number, Otherwise the parcel can not be delivery because of the regulation of customs