ChenFec Wireless Bluetooth Beanie Hat Wireless Unisex Knit Winter Warm Music Hat with Headphones Built-in Stereo Speaker Hands-Free for Outdoor Sports Gifts …

Features: - Built-in mic crystal clear sound technology for hands-free calling. - Simple buttons interface for easy control calls and Playing Music. - Compatible with most Bluetooth devices including Smartphones, Tablets, Laptops, PC, Digital media players, etc. - Built-in easy-access Micro USB charging port. (Micro USB Cable included). - Effective range up to 10m (33ft) w/ free line of sight. - One size fits most. Stretchable Material for maximum comfort, knitted beanie, soft and warm. Specifications: 1. Bluetooth: V5.0+EDR 2 .Frequency: 2.402GHz-2.480GHz 3. Transmission distance: 10M or so 4. Transmission distance of MIC: ?1M 5. Li-ion Battery: 3.7V/180mA 6. Charging time: 2.0 hours (first time should 2.5 hours) 7. Standby time: 60 Hrs so 8. Continuous working time: About 8-10 hours 9. Size: Fits for head circumference about 56 to 62CM 10. It is available to wash it after taking out cable and bluetooth device from the hat. Precautions: Do not expose beanie to liquids or moisture. Do not attempt to tamper with the beanie by dropping, dissembling, opening or crushing, among others. Pull out the bluetooth module before washing the beanied. Keep the beanie away from fire. Do not store the headband near acidic or alkaline material. Packages: 1 X Bluetooth Beanie 1 X Micro USB charge cable 1 X User manual If for any reason you are unhappy with any product by CFZC, please do not hesitate to contact us. We take full ownership and responsibility for the quality of our products and will do our very best to solve your problem quickly and efficiently!