[Improved Bluetooth Beanie] Improved Bluetooth 5.0 wireless technology provides a stable and strong connection, supports music and calls, easy and quick to pair with your devices. Maximum transmission distance up to 33 feet. Built-in stereo speakers, enhance your music listening experience. [Long working time music hat]Built-in with easy-access USB charging port, just charge it through the cable USB included. It takes 1-2 hours to be fully charged. Battery provides continuous working hours up to 8 hours. [LED headlight lights your way] Hands-free LED light is rechargeable and removable. You can take it out to charge with laptop, power bank, outlet, car charger, etc. With three adjustable brightness settings, you'll have the perfect amount of light for any task. you work in the dark. It's handy when no one is there to hold the light for you. This one-size-fits-all beanie with lamp is made from an ultra-soft acrylic blend that provides excellent insulation against cold winter air. Also one size fits most Perfect for camping, hiking, skiing, hunting, jogging, biking, dog walking, auto repair, etc. gift for runners and winter outdoor adventurers. It is also your best gift choice for men, women and teenagers. It is the perfect gift for all family members and friends. Your perfect choice for Thanksgiving, Christmas, birthday and anniversary. Colour: Navy Material: Acrylic Package Contents: 1 x Hat with Bluetooth and LED Headlight 1 x USB Cable Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.