With its ergonomic shape, the lightweight and affordable FreeStyle Comfort rests against the natural curves of your body, making it comfortable to wear on the go. Weighing only 5 lbs., the FreeStyle Comfort can go anywhere you want to go. Enjoy the convenience of wearing it with or without your carry bag by simply attaching the no-slip, padded shoulder strap. Equipped with user-replaceable batteries, this new oxygen therapy device meets FAA guidelines for commercial air flights and allows you to extend your time away from home. Stay active with up to 4 hours of battery life. Wireless technology connects you to CAIREview - a telehealth solution that your provider can use to help ensure you get the support you need. Other accessories sold separately. Please note that the FreeStyle Comfort Portable Oxygen Concentrator requires a valid, U.S. prescription prior to shipment. CAIRE Inc.'s logo, text, graphics, and photo images are the property of CAIRE Inc. and are used with permission. Copyright 2022.