1. Upgraded version of Bluetooth Beanie: Upgraded version of Bluetooth luminous hat with headlight, wireless technology provides stable and powerful connection, supports music and calls, and easily and quickly pair with your device. The maximum transmission distance can reach 33 feet. Built-in stereo speakers and microphone enhance your music listening experience.2. Long working hours music cap: The Bluetooth headlight beanie has an easy-to-access USB charging port built in, and you only need to charge it via the included dollar cable. It takes 1-2 hours to fully charge. The battery can provide up to 10 hours of continuous working time. It is very suitable for camping, hiking, skiing, hunting, jogging, biking, dog walking, car repair, etc.