DescriptionMade of material for long time and durable use. With multifunctional design, it is not only a winter warm hat, but also can be a music hat. Simple look but practical in use. You can send it to your friends as a gift, they will like it very much.Features- Color: Black.- Material: Polyester Fiber. - Size: About 25.00X23.00X3.00cm/9.82X9.04X1.18inch. - Reception is stronger and calls are answered more clearly. - Premium sound quality, enjoy music, voice chat, communication no distance. - Removable design, the hat is dirty, can be easily removed from the equipment for cleaning. - Ventilation and perspiration, in outdoor sports, more conducive to perspiration and ventilation. - The speaker with long stand-by time is capable of delivering amazing audio so you can enjoy your playlist anytime anywhere.