This outdoor Bluetooth hat, sized 18.5*28*12cm for easy backpack or handbag carry, is made of premium selected fabric—thick yet breathable, skin-friendly and non-irritating, ensuring comfort during long-term wear in intense outdoor sun. Integrating sunshade, golf visor and high-quality audio functions, it’s an excellent companion for hiking, golfing, camping and running. Equipped with high-quality graphite speakers and tuned stereo for immersive sound, it adopts stable Bluetooth 5.0 for fast pairing, anti-interference and seamless switching between music and hands-free calls. With a built-in rechargeable lithium battery (TYPE-C port, 2h charge for 6-8h use) and adjustable strap fitting most adults/teens, its classic visor effectively blocks sunlight, suitable for various outdoor sun protection scenarios.