Momentum Sports Earbuds with Fitness Tracking for Heart Rate and Body Temperature - Crystal Clear Sound with Adaptive ANC Function, Secure Fit, 24 Hours Battery Life - Graphite

OverviewMOMENTUM Sport defines a new class of sports headphones. Body performance monitoring sensors integrated into the headphones measure heart rate and body temperature for sports ecosystems. With full access to the Polar Flow app, it allows precise tracking of important body performance data. Enhance your performance with unrivalled Sennheiser sports sound supplied by high-quality acoustic converters. Designed solidly for multiple sports use, the secure and comfortable fit allows you to perform with confidence in any environment. Effective bass and Adaptive ANC allow you to stay full of energy and stay on the course without distraction when you exercise in noisy environments. Designed for athletes who want durable and reliable equipment, it offers 24 hours of battery life while working as powerful as you do, and IP55 rated earbuds resist impact, dust and sweat to withstand extreme training and harsh weather. The semi-open design with innovative acoustic drain channel reduces noises from the body such as footsteps or breathing for a natural feel and allows you to hear outside sounds for more awareness when you train outdoors.