Photo 1 of Pulse Oximeter HealthTree Oxygen Monitor Fingertip, Bluetooth Pulse Ox with Free APP, O2 Pulse Oximeter Finger and Heart Rate Monitor, 2 X AAA Batteries, Lanyard

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Photo 1 of Pulse Oximeter HealthTree Oxygen Monitor Fingertip, Bluetooth Pulse Ox with Free APP, O2 Pulse Oximeter Finger and Heart Rate Monitor, 2 X AAA Batteries, LanyardPhoto 2 of Pulse Oximeter HealthTree Oxygen Monitor Fingertip, Bluetooth Pulse Ox with Free APP, O2 Pulse Oximeter Finger and Heart Rate Monitor, 2 X AAA Batteries, Lanyard