Senbowe&trade;Newest IronMan Stereo Bluetooth Headset/Earbuds/Headphones - Compatible with iPhone, Android, and Other Devices(Black Newest surface design-IronMan shaped Bluetooth headset,very fashionable. 2 Replacement Battery:Rechargeable, detachable.Up to 6 * 2 hours talk time and 7 days standby time. CVC6.0 technical noise cancellation,can transfer a clear and wondrful sound experience even you are in a noisy environment Lightweight,and comfortable design,makes you enjoy a wonderful wearing experience. Connect with two Bluetooth-enabled devices at the same time and can switch each other easily