Two portable oxygen devices, each comes with 2 batteries and a charger. All accessories included. Lightly used. Oxygen generator device 🔹 Condition: Very clean / Like new 🔹 Usage: Home use only 🔹 Specifications: • Quiet operation and low noise • Low electricity consumption • One of the best and lightest oxygen generator devices � Features: • No need to refill cylinders • Suitable for patients and the elderly