Ekho Heart Rate monitor watches come standard with watch face and features, heart rate monitor transmitter, and manual. The FiT18 offers Continuous heart rate, Average heart rate, Maximum heart rate, % of max heart rate, Target Zone, Out of zone visual alarm for high/low target zone, Audible alarm OFF mode, Time in/above/below target zone recall, Calories Burned, 21 laps, Time, Date, Stopwatch/Exercise time, Water Resistant, Large display, ECG Accurate, User changeable batteries, Interfaces with heart rate interactive exercise equipment. Ekho FiT-18