Photo 1 of ***missing USB charger*** Vibeat OxyRing Continuous Oxygen Monitor - Bluetooth Pulse Oximeter with Real-time Reminder & Free PC Report, Wearable Finger Oxygen Meter for 16hrs Oxygen Level & Heart Rate Recording

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Photo 1 of ***missing USB charger*** Vibeat OxyRing Continuous Oxygen Monitor - Bluetooth Pulse Oximeter with Real-time Reminder & Free PC Report, Wearable Finger Oxygen Meter for 16hrs Oxygen Level & Heart Rate RecordingPhoto 2 of ***missing USB charger*** Vibeat OxyRing Continuous Oxygen Monitor - Bluetooth Pulse Oximeter with Real-time Reminder & Free PC Report, Wearable Finger Oxygen Meter for 16hrs Oxygen Level & Heart Rate RecordingPhoto 3 of ***missing USB charger*** Vibeat OxyRing Continuous Oxygen Monitor - Bluetooth Pulse Oximeter with Real-time Reminder & Free PC Report, Wearable Finger Oxygen Meter for 16hrs Oxygen Level & Heart Rate RecordingPhoto 4 of ***missing USB charger*** Vibeat OxyRing Continuous Oxygen Monitor - Bluetooth Pulse Oximeter with Real-time Reminder & Free PC Report, Wearable Finger Oxygen Meter for 16hrs Oxygen Level & Heart Rate Recording