... ,ECG collection,SpO2 and PR inspection. The product is applicable for family, hospital, private Clinique, community medical treatment. ... Earphone output and 16 steps volume adjustable4.Alarm for SpO2 and pulse rate exceeding limits5.Real-time ... consumptionAccessoriesAn User ManualAn earphone, it is stethoscopeA power adapter, lithium battery chargerInternational standard 10440 lithium battery, 3.7V, ...