Size, Weight
Single Battery: (L) 5.91″ x (W) 2.68″ x (H) 7.2″; 2.8 lbs. / 1.27 kg. Double Battery: 28 (L) 5.91″ x (W) 2.68″ x (H) 7.79″; 3.29 lbs. / 1.49 kg.
Oxygen Flow
Flow per setting: 1 (210ml/min), 2 (420ml/min), 3 (630ml/min)
Power
AC Power Supply: 100-240 V, 50-60 Hz (auto-sensing to allow worldwide use), DC Power Cable for mobile use in car.
Battery
Single Battery: Up to 2.7 hours. Recharge up to 3 hours with AC or DC power. Double Battery: 28 Up to 5 hours. Recharge up to 5 hours with AC or DC power.