Monitor heart rate as you can run or jog.Records exercise statistics.Led backlight available.Time with 12/24 indication daily alarm.40 data records.Maximum, average, minimum & end heart rate.Wireless ECG-accurate transmitter belt.Energy-saving function This heart rate monitor and watch is the perfect addition to your training program! now you can monitor your heart rate as you run, jog, or doing any cardiovascular exercise. your heart is a muscle and can be made stronger through exercise-and when training, it’s important to have an idea of your ideal heart rate zone. this watch also includes a chronograph, daily alarm, heart rate statistics (current, average, minimum, and maximum heart rates)-plus a wealth of other features including marathon training mode. it’s also equipped with a pedometer to count your steps and calorie and fat burned counters. led backlight makes reading the watch easy at night.