The Welch Allyn 3.5v Diagnostic Set includes AutoStep Sealed Ophthalmoscope, Pneumatic Otoscope, Convertible Handle, and Hard Case (Model 97320-C) makes performing a physical diagnosis easier. Welch Allyn's medical diagnostic instruments feature the exclusive Halogen HPX lamps that provide brighter, whiter light than standard halogen lamps for true tissue color and long-lasting illumination. Built for durability, ease-of-use and comfort, these instruments will provide you with lasting satisfaction.Key Components:3.5v AutoStep Coaxial Ophthalmoscope Head Only3.5v Halogen Lamp3.5v Pneumatic Otoscope without Specula (Head Only). Does not come with the Pneumatic tubing or bulb, which is extra. Order part # 21501 @ $7.90.3.5v Halogen LampReusable Polypropylene Pneumatic, Operating, and Consulting Otoscope Specula, Set of Five3.5v Convertible Rechargeable HandleReplacement NiCad Rechargeable Battery (Orange) for 71000-AHard Case for 3.5v SetWarranty: Welch Allyn will repair or replace, free of charge, any parts of its own manufacture proven to be defective through causes other than misuse, neglect, damage in shipment, or normal wear.