Smart Ring Heart Rate Blood Oxygen Detection Bluetooth Connection
$62.25
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Product information:Bluetooth version: BT5.0Bluetooth effective distance: 2mBattery type: rechargeable lithium-ion batteryBattery capacity: 25mAhStandby time: 192h (one charge)Charging time: 1.5hWaterproof grade: IPX8Size Information:Packing list:Ring*1 Product Image:
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