Place of Origin : Shang Hai,China

Convenience:Compact appearance, more convenient to carry.A button to wake up, even the elderly can also be used simply.Two 1.5 V AAA batteries can be used continuously for more than 15 hours, more environmental protection and saving.Resting Heart Rate Heart beats per minute while at rest tells a lot about your internal health and fitness levels. It is a strong indicator of your risk for heart problems.