Bluetooth Ear Warmers Now with Siri and Google Now activation feature and Hi-Definition Speakers that provide dynamic, rich sound! Our Bluetooth ear warmers are a cut above anything else available. Bluetooth Wireless Technology allows you to take calls and listen to music from other Bluetooth-enabled devices. Talk time: 9 hours; Play time: 8 hours Standby time: 100 hours on a full charge. USB charging cord included. A soft shell body and grid fleece lining provide warmth and comfort with the added protection of wind and water resistance. Patented behind-the-head design fits comfortably over your ears and allows them to be worn with other headwear and head protection. Adjustable click-to-fit frames allow for a wide variety of head sizes.