Battery Type : Lithium-ion battery (4400mAh, 3.7 V)
Features : Low Perfusion SpO2 Measurement,SpO2, BPM, Pulse Parameter Display,Nellcor Compatibility,3.2″ Color TFT LCD for Clear View,Landscape & Portrait Views,Li-on Rechargeable Battery – Cordless Use for Up To 20 Hours,Intuitive Operation