VCC1006: Features: -Heart rate functions include: Current heart rate, average heart rate, max heart rate, target zone, out of zone alarm, time in / above / below target zone recall, calories burned, and ECG accuracy. -Watch functions include: Time of day, date, 21 laps or file storage, stopwatch, interfaces with heart rate interactive exercise equipment, user changeable batteries in transmitter and watch. -Combining all the necessary heart rate features you need making this the best personal trainer money can buy. -Essential fitness tool use for starting or are a veteran to fitness. Product Type: -Measurement device or training aid. Number of Items Included: -1. Battery Required: -Yes. Dimensions: Overall Width - Side to Side: -5 Inches. Overall Product Weight: -1 Pounds.