Bluetooth 5.0 Doudou: Compatible with the upgraded version of Bluetooth 5.0, 66-foot wireless range, high-fidelity stereo, built-in stereo speakers and microphone, enhance your music listening experience. You can wear it outdoors for hunting, camping, fishing, running, walking, car repair, and any lighting work you want to free your hands.Soft material: Our bluetooth beanie is made of a mixture of acrylic and soft knit, which is thicker than other products. Provide maximum comfort, sophistication and mobility for most multifunctional lifestyles indoors, sporty outdoors or daily use without compromising convenience. Can be washed by hand, please remove the LED and earphones before washing.Long working wireless headset: Bluetooth beanie hat with built-in rechargeable lithium polymer battery can save your battery costs. It takes about 2 hours to fully charge, and it can work continuously for 2-10 hours. It can be removed and charged using laptops, mobile power supplies, sockets, car chargers, etc. Hand washable, please take off the LED and earphones before washing.Special LED design: Built-in detachable 4 special rechargeable LED lights, there are four lighting modes: high-medium-low and blue and red flashing alternately, directing the directional light to where your eyes see.The best choice for gifts: our unisex luminous bluetooth beanie hat provides incredible hands-free lighting so you can keep working on cold days. Fashionable styles and unisex designs meet the needs of all men, women, teenagers and children, the best gift choice for Thanksgiving Day, Christmas, birthdays and other special occasions.