1. The attached external battery can be used for 2 hours when fully charged. At home or in the car, the machine can also be directly connected to the power supply for use
  2. Weighing only 3 pounds, product size: 9.05 * 3.7 * 5.5in.The flow gear of the small portable oxygen concentrator is fixed at 3 liters
  3. One-click operation, easy to operate. Three timing buttons can be set for 20-120 minutes. Equipped with a portable bag
  4. This oxygen machine is convenient for home and Travel use