The Ekho E-15 heart rate monitor makes listening to your heart easy and affordable, allowing you to focus on your workouts without worrying about complicated multi-functions, Heart rate functions include: current heart rate, average heart rate, max heart rate, target zone, out of zone alarm, calories burned, and ECG accuracy, Watch functions include: time of day, date, stopwatch, water resistant, interfaces with heart rate interactive exercise equipment, and user changeable batteries in transmitter and watch, SKU: FABE1057