Wireless Sports earbuds with Dolby sound enhancement and biometric built-in heart rate monitor</br>Jabra SPORT LIFE application to calibrate for an optimal fit & heart rate measurement?? as well as integrated training management and three sophisticated fitness tests</br>Control music and calls directly from the headphones in-line controls</br>IP55 Certified?? drop?? strength?? dirt?? temperature & humidity tested - US Military Standard</br>Works with most popular fitness applications on iOS and Android devices to provide pace and distance alerts</br></br>Product Description</br></br>Take your training to the next level with Jabra Sport