Upgraded Bluetooth 5.0the best bluetooth hats upgraded V5.0 technology sync to any Bluetooth enabled devices from a range of up to 65 feet, offers the stablest and strongest connection, providing a comfy, superb listening experience LED Headlight BeanieThis wireless hat has 5 rechargeable high light LEDs, with 3 updated adjustment modes: 50% brightness, 100% brightness, red and blue emergency lights, you can choose different levels of brightness according to the environment or use the red and blue emergency lights. Only need 1.5-2 hours provide more than 10 hours of playing music and hands-free call Knit Beanie with detachable Board the warm and soft beanie combine human engineering design and stretchy enough to fit for most people's head, Equipped with detachable control board, microphone and speakers can be taken off for the music hat, knit beanie can be machine washed with a laundry bag Best Gift Choice Designed with 17cm/6.7in diameter, and 22cm/8.7in height wireless Bluetooth hat perfect for men gifts and women gifts in fall and winter, no matter on Birthday, Thanksgiving day or Christmas day, Suit for running, skiing, skating, hiking, working out, dog walking, holiday traveling so on What you getbluetooth beanie hats, micro USB cable, technical manual, if you receive the defective products or have any question, please feel free to contact us