These are the ear warmers with integrated speakers that connect wirelessly to a smartphone, allowing you to listen to music or answer calls without exposing ears to the cold. The ear warmers have an integrated microphone and speakers that deliver crisp, clear sound. They connect to an iPhone, Android, or Windows smartphone using Bluetooth and support both Siri and Google Now voice control features, eliminating the need for separate headphones. The ear warmers have a thermal fleece shell, soft polyester 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 and won’t muss one’s hair. Fold flat for easy storage in a pocket or purse. Provide up to nine hours of use after a 3 1/2-hour charge via the included USB cable. 4 2/3" W x 4 2/3" L x 4" H. (5 oz.)