Bluetooth Music Winter Hat for Indoors Outdoors Beanie 。Soft double-knit beanie is thick enough to keep your head warm & comfortable so you don\'t have to take off your hat when you\'re on the phone. Use the latest new technology Bluetooth 5.0 chip to provide a faster and more stable connection than V4.2. Easy and fast pairing with all Bluetooth devices. Built-in new upgraded rechargeable lithium battery, reduced power loss, charging time 1.5~2 hours, continuous work about 10~12 hours hands-free calls and music entertainment, can standby for 60 hours. You can enjoy non-stop music from dawn till dusk The wireless bluetooth beanie has two bulid-in HiFi stereo speakers, reducing resonance, ensures clear sound and lossless music. Compatible with Bluetooth for other devices with a range of up to 65 feet Features headphone slits that make the headphones easy-to-remove and reinstall, you can hand wash knit hat after removing the Bluetooth modules. Machine wash in cold water, wash together with similar colors. Mild soap or detergent. Air drying is recommended.