Inogen One G4 Portable Oxygen Concentrator Bundle

System Includes: - One single battery- Inogen One G4 (4 Cell System)- Standard 3-year warranty- AC/DC power supplies- Carry strap, user manual- Intelligent Delivery Technology Bundle Includes: -Extended Life Lithium-Ion Batteries (BA-408) -External Battery Charger & Power Supply (BA-403) Introducing the smallest portable oxygen concentrator from the most popular brand, Inogen. The Inogen One G4 is capable of providing oxygen delivery in an unbelievable small and quiet package. With flow settings from 1-3, the Inogen One G4 is designed to increase independence for most users 24/7. It can be charged at home or on the go - giving you the freedom you deserve. The Inogen One G4 delivers the independence of a portable oxygen concentrator in one of the smallest, lightest, and quietest packages available to the oxygen user today. The Inogen One G4 provides you with 3 separate oxygen flow settings. It also includes Inogen’s Intelligent Delivery technology, which sets it apar