Running Buddy"Single Ear" SportBud (2016 Model) A newer version (2017 Model) is now available on Amazon Built in mic works with the iPhone and all other smartphones Excellent clarity and great bass response Comfortable fit in either ear Cable length: 49  1.25mm & Standard 3.5 mm jack Never miss a beat and still hear every car. Built in mic works with the iPhone and all other smartphones Excellent clarity and great bass response Comfortable fit in either ear Cable length  49  1.25mm Standard 3.5 mm jack