Specification 1. Hat material: cotton 2. Battery capacity: 700mAh 3. Battery model: 902040 polymer battery 4. Charging: USB cable 5AV/1A 5. Charging time: 3 hours, use time: 5 hours 6. Supported languages: 10 7. Input characters: 20 Chinese / 40 English 8. Lamp beads: 2121RGB lamp beads 9. Number of lamp beads: 432 10. Pixel: 12*36 Features About LED screen upside down: Our LED screen supports 90, 180 and 360 rotation angles. So don't panic when you find the hat text is upside down, you can control the angle through the phone software. Using the hatFor the party hat, you need to scan the QR code on the instruction manual, download the APP (the APP is free to download and use), then turn on the bluetooth and enter the APP to connect the hat. After the LED display flashes once, the connection is successful. When the pattern is selected, the LED screen will be displayed simultaneously. DIY PaintingYou can design patterns to save them, show your highlights and attract attention. You are not only a user of LED screens, but also a creator of LED screen animations. Scientific DesignThe LED display cap is made of 100% pure cotton, the top of the cap is thicker, it is not easy to deform or fold, and it will not damage the appearance of the cap. The button on the back of the LED adjustable cap can be adjusted according to the head size. The LED screen of the hat is detachable, after removing the LED screen, the hat can be cleaned repeatedly. Wide UseThis hat is perfect for outdoor concerts, baseball, carnival, Christmas, bars, clubs, festivals, halloween, hip hop, costume parties, etc. The LED lamp cap is made of cotton cap + LED display, the LED display is located inside the lamp cover. If you don't want an LED light, you can turn it off and use it as a regular hat. This hat is rechargeable and suitable for all occasions. Package Hat*1 Chinese and English manual*1 USB charging cable*1