COLD-RESISTANTBREATHABLE&HANDS-FREE: Acrylic and polyester material provide the hat with maximum comfort and warmth. Specialized design offers you hand-free music and phone conversation with good sound absorption</br>WIRELESS TECHNOLOGY: Universal Bluetooth V4.0 version with stable signal is available for all Bluetooth devices including smart-phones tablets iPhone iPad Android Samsung Galaxy laptops PC etc. Wireless range up to 33 feet (10 meters)</br>USER-FRIENDLY CONTROL PANEL: Set-in stereo speaker and microphone on the left earpiece allows you to skip back and forth through your play-list freely answer and hang up calls without having to use your phone</br>LARGE BATTERY CAPACITY: Built-in high density rechargeable Li-ion battery with ONLY 1 hours charging time can provide up to 60 hours standby time or 4 hours talk/music playback time also easily recharged by Micro USB (charging cable included)</br>FULLY WASHABLE: No-hassle removal design provides convenience for beanie washing with color retention and non-transformation (Just remove the internal speakers from their pouches before washing)</br></br>Product Description</br></br><b>Stay Warm?? Look Cool</b