Warranty: 60 days INOGEN One G2 Oxygen Concentrator Oxygen used condition, you will receive: 1x INOGEN One G2 Oxygen Concentrator Oxygen 1x INOGEN one G2 battery, the battery holds power but we are not able to confirm battery level 1x INOGEN one power adapter, works with 100-240 volts 1x INOGEN one carry bag please see photos for further details, If you have any question please email us. We post the item from UK, we post it with a tracking number, we generally post the item with royalmail international signed for delivery If you prefer any shipping company please let me know following payment completion, we do accept PayPal payment options. The sale of this item may be subject to regulation by the U.S. Food and Drug Administration and state and local regulatory agencies. If so, do not bid on this item unless you are an authorized purchaser. If the item is subject to FDA regulation, we will verify your status as an authorized purchaser of this item before shipping of the item. Return Policy14 Day Return Policy. Customer must pay the return shipping costs when returning a product.