Black Technology Heart Rate, Blood Oxygen, Sleep Monitoring Waterproof Bluetooth Ring
$221.20
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Product information: Color: black, white Applicable people: Adults Battery capacity: 20 mA Additional functions: Heart Rate/blood oxygen/sleep/body temperature monitoring/step counting/calories Wearing method: wear directly Packing List: Ring, charging cable, instruction Size: Packing list: Ring, charging cable, manual Product Image:
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