3.5v AutoStepä Coaxial Ophthalmoscope Head Only Wheelchair Transport Legs have pre inserted carriage bolts Wall Transformers Legs have pre inserted carriage bolts for fast easy assembly warrants that the Portable Oxygen Concentrator POC (the Product) will be free of defects in workmanship and or material for the following period: Portable Oxygen Concentrator five (5) years from date of shipment * Battery 1 year from date of shipment Contents: EasyPulse POC concentrator Internal lithium ion battery Wall charger Car charger Comfortable carry bag with fully adjustable padded shoulder strap 5v AutoStep© Coaxial Ophthalmoscope Head Only * The Welch Allyn AutoStep© Coaxial Ophthalmoscope uses a Halogen HPX lamp that provides 30% more light output for true tissue color and consistent long lasting illumination * Its 68 lenses in one diopter steps provide better resolution *