The ideal Reebok monitor for those exercising for well being, the recreational exerciser and those on cardiac rehabilitation programs. Easy operation, and extra large numbers makes this a very user-friendly monitor. Features: Heart Rate to ECG accuracy, easy to operate only One button calendar with daily alarm, large numbers that are easy to read, water resistant to 20m, scratch resistant glass, scan sequence press a button, unit will display average heart rate, highest & lowest heart rate and total exercise time, extra soft rubber strap very comfortable to wear, contour lite transmitter included user can change battery.