Jeystar Soft Winter Wireless Stereo Bluetooth Hat Bluetooth Smart Knit Cap Headset Headphone Speaker Mic Hands-Free for Cell Phones Enjoy Music Without Earbudsbluetooth hat Bluetooth Beanie Sync music from you smart phone, hat Built-in earphones ensure you free from earplugs fall problem. Winter running, bike cycling, hiking, climbing etc sports activity will become so enjoyable with a music warm hats company. Good Partner for Winter Callinghat with bluetooth Sync calls from your smart phone, wear this hat, you will not miss any call from your phone. With this Bluetooth hat, no need to hang your hands in chilly wind to reply calls. Quality speaker design ensure you will enjoy clear & loud voice for smooth calling conversation Rechargeable Battery EquippedMusic hat Listen to music loudly for long time cost a lot of battery? No worry at all! This hat with rechargeable battery, its easy and economic to recharge with USB cable as we provided. Easy to Disassemble & WashBeanie hat With Bluetooth devices will not be washed? NO! NO! NO! Its very easy to remove the devices and wash hat freely. Fully & Strongly CompatibilityThis smart cap can be compatible almost all smart phones with Bluetooth function, match for iPhone 5 5 S iPhone 6 6s Plus, Iphone 7 Plus, iPhone 8, iPhone 9, iPhone 10, iPhone X, iPhone XS Samsung Galaxy Note 9 S9 S8 S7 S6 S5 S3, Huawei, Google Pixel /Pixel XL etc.