HACENOR Small Portable 2 Hours Internal Battery 1-2 Liters Two Modes Flow Oxygen Concentrator For Travel Use FYY-03 Type:Oxygen Concentrator(With Built-in Battery)+1PC External Battery+1PC Inverter 5*242mm Charge time is approximately

5*242mm Charge time is approximately 3-4 hours fully charged Battery duration 80-120 minutes

SD card to keep sleep information

90%@1-3LPM

85 lb) Noise ≤ 45 dB(A) at any setting Size 390mm*275mm*120mm Charge time is approximately 30 minutes fully charged Battery duration 2 hours at 3lpm

HACENOR Small Portable 2 Hours Internal Battery 1-2 Liters Two Modes Flow Oxygen Concentrator For Travel Use FYY-03 Type:Oxygen Concentrator(With Built-in Battery)+1PC External Battery+1PC Inverter 5*242mm Charge time is approximatelySpecification: Model Number FYY 03 Oxygen Flow Mode Continuous&Pulse Flow Mode Oxygen Flow Low Gear : 1. 00. 3L Min High Gear : 2. 00. 3L Min Oxygen Purity 30%5% Weight Machine Weight About 0. 93KG(2. 05lb) Noise 45 dBA At Any Setting Dimension 125x95x140(mm) Charging Time 2 to 3 Hours