t89 dual bluetooth 5.0 earphone smart bracelet heart rate blood pressure tracker smart watch men women for ios android phone, Slivery;brown

precautions 1. it is forbidden to use the adapter with charging voltage 5v and charging current 2a, charging time is 60 minutes; 2. it is forbidden to charge in case of water stains; 3. it is forbidden to soak, swim, dive, diving, shower; 4. this product is an electronic monitoring product, not for medical reference, the data is for reference only; 5. blood pressure test method: please keep your body relaxed and still when testing, and make sure the wristband is at the same height as...