Earphones With Heart Rate Monitor
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Related Faq
Q
What is the wind ""refresh"" rate?
A
The wind speed and direction are real time. 
Q
Can I connect Bluetooth earphones from other brands?
A
Yes, M3 can be connected to any brand of Bluetooth earphones for intercom. 
Q
Whats the magnification rate?
A
Not sure what the mag. Rate is but clear enough to see the eardrum. 
Q
Will this smart watch continuously monitor my heart rate while I sleep, and remind me when there is an abnormality (for example: low pulse, atrial fibrillation)?
A
Yes, the heart rate and blood oxygen sensor record continuously around the clock, and give timely warning when the resting heart rate is too high or too low. 
Q
Does the monitor have a protective film?
A
Each baby monitor is attached closely with a protective film to prevent scratches. You could try to buckle the four corners of the screen with your nails until it appears a gap. Then grab the gap and tear off the protective film(The specific operation is shown in the video). 
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