1、Cotton material is comfortable, breathable, anti-static, colorfast and resistant to wear, and faux fur material can isolate cold and maintain warmth to keep you warm all the time 2、Bluetooth buttons can answer phone, adjust volume and listen to music of sound quality 3、Being super to receive the signal for clearly answering the phone via the smart hat instead of exposing hands in the cold 4、Bluetooth 1 technology is easy and fast to pair with cell phones, tablets and other bluetooth enabled music devices 5、Wireless range up to 33ft without obstacles, which allows you to listen to music and do sports simultaneously Features: Cotton material is comfortable, breathable, anti-static, colorfast and resistant to wear, and faux fur material can isolate cold and maintain warmth to keep you warm all the time. Bluetooth buttons can answer phone, adjust volume and listen to music of sound quality. Charged by connecting cable directly without removing the bluetooth, it is convenient. Stereo track has good sound quality. Being super to receive the signal for clearly answering the phone via the smart hat instead of exposing hands in the cold. Built in battery with long standby time and continuous talk time up to 4-6h. Wireless range up to 33ft without obstacles, which allows you to listen to music and do sports simultaneously. Bluetooth 4.1 technology is easy and fast to pair with cell phones, tablets and other bluetooth enabled music devices. Suitable for cycling, fishing, hiking or other outdoor activities in winter. Detachable mask has excellent breathability, which can protect your face from cold wind or dirt effectively. Adjustable quick release buckle can fit different sizes comfortably and firmly. Washable after removing the Bluetooth. Specifications: Bluetooth Version: 4.1 Material: Cotton + Faux Fur Optional Colors: Red, Black, Grey Head Circumference: 60cm / 24inch Battery: 180mA Lithium Battery Wireless Transmission Range: <10m / 33ft Frequency: 20-20KHZ Sensitivity: 95DB Speaker Size: 32mm Impedance: 32Ω Charging Time: 2h Continuous Talk Time: 4-6h Playing Time: 3-6h (70% Volume) Track: Stereo Weight: 200-203g Type: Headset  Function: Playing Music & Talking & Battery Indicator Package Includes: 1 x Wireless Bluetooth Hat 1 x Charging Cable 1 x Manual