Style and Technology Combined: 100% Soft Acrylic, double knitted beanie. Keeps your head warm and allows you to listen to your music without having to wear additional headphones. The Bluetooth stereo headset brings you great sound quality, style and comfort. Perfect for the gym, exercising, outdoor sports such as running, skiing, skating, hiking, camping, dog walking, holiday travelling and so on. The Latest Bluetooth V4.0 Technology: Easy and fast to pair with cell phones, tablets and other Bluetooth enabled music devices. Wireless range of up to 10 feet. User-friendly Control Panel: The intuitive buttons on the built-in stereo headphones allows you to skip songs back and forth, increase/decrease volume. The multifunction button allows you to answer and hang up calls without having to use your phone. Voice prompts lets you know when device is paired or when battery is low. Great Battery Life: Built in rechargeable Li-Ion battery gives you about 6 hours talk/play time, 2.5 hours charging time, 60 hours standby. Micro USB charging cable included. Fully Washable: The headphone modules are easy to remove to allow washing. One size fits most!