Wear the hat, nobody will ever know that where the music is coming from. Built-in MIC to allow you to answer calls wirelessly. Easily used with an Apple-phone, Apple-Pod, Sam-sung, android. It's perfect for traveling, waiting for the bus, jogs in the cold or just rocking out in your bedroom. This wireless bluetooth baseball cap is made with cotton, which is light and comfortable. Hands-free speaker will allow you to listen to music and talk while doing variety of other activities headphone speakers built right in to the stylish design of a hat.