Hate the cold? So do we! Free yourself from the need to take your phone out in the cold and keep your ears warm at the same time with our own exclusive Bluetooth Headphone Earmuffs! These ear warmers are built with integrated speakers that connect wirelessly to any smartphone, allowing you to listen to music or answer calls without exposing your ears to the cold. Perfect for any one in cold weather such as skiers, snowboarders and those who work outdoors who wear ear muffs all day. The ear warmers have an integrated speaker on each side and use Bluetooth to connect to an iPhone or any Android or Windows phone, eliminating the need for separate headphones. They deliver crisp, clear sound that sounds great while on the go. The ear warmers have a thermal fleece shell and lining and insulation to shield ears from cold winds. Their adjustable-width design ensures a proper fit and their behind-the-neck design is comfortable to wear with glasses. Fold flat for easy storage in a pocket or purse. Provides up to 8 hours of use after a 3-hour charge via the included USB cable. Feature embroidered control buttons for various functions such as volume control, skip track, power and answer phone.