1.Delivery time: the delivery time of our products is relatively short. We will inform you in advance of any delivery problems
2.Specification: USB rechargeable, OLED display, 2 operation mode, bluetooth connection, unique ring sensor, report in free App&Cloud.
3.Product set box: main unit, ring sensor, charging cable, user manual.
4. Function: monitor heart rate, blood oxygen saturation.
5.Features: accurate, fast, reliable. Smart vibration by low blood oxygen. The vibrator in the sensor will be activated when the SpO2 fall below the pre-set value. The vibrator will stop when the SpO2 recover, or you an press the button to stop it.
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