Scosche's Rhythm+ Armband Heart Rate Monitor fits discreetly around your lower arm and connects to your devices via both Bluetooth and Ant+, working with over 200 Applications including Strava and MapMyFitness.__ACCURACY OF SENSORS_ The Rhythm+ employs PerformTek Precision Biometrics* which is sensor technology that continuously measures real-time biometric data to give highly accurate monitoring and measurement. __ Use your favourite fitness app on your smartphone or tablet to monitor your heart rate, calories burned, distance, speed, pace and more. Rhythm+ optically measures blood flow and body movement to ensure the most accurate data possible.__100 FT. RANGE_ It means you can be away from your device like when you are using your Turbo trainer and it still works the same ... More info
