Features Excellent Cotton Fabric: This LED hat is only made of excellent cotton fabric, which is soft and breathable, and the top of the hat is thickened, which is not easy to be deformed or collapsed, and won't damage the appearance of the hat. Removable LED Screen: This Led Cap has a removable Led screen, if you don't want your hip hop hat to display text, you can turn off the power and use it as a regular hat. You can also remove the led screen and use it somewhere else. Simple Operation: Download the for SPOTLED app from the for Apple app store or scan the QR code in the user manual, press and hold the power button to activate the LED screen and connect it to your phone's bluetooth hotspot. In the app, you can edit the Wide Application: This LED hat can be used for outdoor concerts, baseball, carnivals, Christmas, bars, clubs, holiday parties, Halloween, hip hop street dance. Adjustable Buckle: There is a reasonable adjustable buckle on the back of this LED hat. You can adjust it according to the size of your head. Specification: Item Type: LED Cap Material: Cotton Battery: 1 x 602040 Polymer Lithium Battery 450mah ( Shipped With Built In Battery ) APP: for SPOTLED APP Connection: Bluetooth Package List: 1 x Hat 1 x USB Cable Package List 1 x Hat 1 x USB Cable