Jabra makes very good Bluetooth headsets and the SPORT COACH is no exception. These wireless sport earbuds make use of TECHNOLOGY to deliver intelligent audio coaching, optimized for cross training and indoor workouts, as well as fantastic sound. With the SPORT COACH you will find: • A perfect and secure fit • Sweat and weather proof durability • Music powered by Dolby® Built to work with the SPORT COACH is the Jabra Sport Life App. Plan, track, and analyze your cross training or other indoor workout. Choose from more than 40 exercises, from beginner to advanced. Get in-the-moment, personalized in-ear audio coaching as you work out. Use time or repetition-based training while being motivated by your favorite music. If you combine your cross training with running, the integrated TrackFit™ motion sensor will measure distance, pace, steps, cadence and calories burned. This unique motion sensor captures detailed activity and performance data for the Jabra Sport Life App, helping you train at the right intensity. Also available in the App is the Cooper Test. This is a measure that assesses the general level of fitness for an individual considering factors which include age and gender.