The outer layer of the bluetooth hat is soft, and the inner layer is wool. It provides you with maximum comfort and warmth. It is a perfect fashion accessory in cold weather.Wireless Smart Bluetooth can easily connect to all media player devices that support Bluetooth, with faster connection speed, more stable communication, and a wireless range of 33 to 65 feet. Must give gifts to teenagers, presents, boys, men, men, women, friends birthdays. Bluetooth caps suitable for indoor and outdoor sports such as vacation travel, fitness, leisure, jogging, running, walking, skiing, fishing and so on.This bluetooth beanie is definitely a technology gift for teenagers, boys, boys, girls, men, women, fathers, fathers, and mothers on Christmas and Thanksgiving birthdays.Even if you are on a noisy street, you can enjoy an amazing enhanced music experience. Put on our bluetooth beanie and enjoy the wonderful music. The bluetooth hat is a technology gift for teenagers, men, women, fathers, fathers, mothers, men and mothers on Christmas, birthday and Thanksgiving.