Bluetooth Beanie for adult and kids, with Stereo Headphones and Microphone; Fit Fitness Outdoor Sports Skiing Running Skating operation, Built-in Stereo Speakers, Hands-free Phone Call Answer. (Black) Simply sync to any Bluetooth device Handsfree speaker that protects the head from the cold winter and will also allow you to listen to music and talk while doing variety of other activities V3.0+EDR Bluetooth version, available for all devices with Bluethooth function sports-active outdoor, or everyday usage without compromising the convenience Will not only look fashion but also feel warm.