The Bluetooth Heart-Rate Monitor from GNC is a comfortable, machine-washable strap. It wirelessly syncs data to smartphones and portable devices and tracks current heart rate, average heart rate, maximum heart rate, calorie, consumption, exercise time and heart-rate curve. It is ...The Bluetooth Heart-Rate Monitor from GNC is a comfortable, machine-washable strap.
It wirelessly syncs data to smartphones and portable devices and tracks current heart rate, average heart rate, maximum heart rate, calorie, consumption, exercise time and heart-rate curve. It is powered by a long-life CR2032 battery. * Before beginning any weight loss or exercise program, you should consult with your physician.