Features:- This wireless hat has 4 rechargeable high light LEDs with 3 updated setting modes: 50% brightness, 100% brightness, red and blue emergency lights.- Bluetooth 5.0 technology offers a stable and strongest connection, supports 15 m long distance transmission and can be connected to most smartphones, tablets and other Bluetooth-enabled music devices quickly and easily in seconds.- The built-in wireless stereo speaker and microphone for hands-free calling and listening to music enhance your listening experience.- With built-in 2 rechargeable batteries, one is for headphones, one is for LED light, you can remove them to charge by a laptop, power bank, wall socket, car charger, etc.- This winter sports hat is made of ultra-soft and insulating stret.
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