In-ear earphones - Universal - Winter plus cashmere version 5.0 wireless bluetooth knitted beanie custom music beanie Highlights Universal Winter plus cashmere version 5.0 wireless bluetooth knitted beanie custom music beanie Winter Plus Cashmere V5.0 Wireless Bluetooth knitting hat personalized music hat The product is shipped based on the color or size of the main image on the product page. Bluetooth Cap: Rgthe Bluetooth Hat, the woven label is made of PU leather, the principle is that the Bluetooth headset is built in the hat, and the Bluetooth listening and speaking function can be achieved by wearing the hat.And the Bluetooth is removable, the hat can be removed and washed if it is dirty, the Bluetooth version is v5.0, it has a built-in lithium battery, a charging IC protection board, and the protection circuit is overloaded.