The Welch Allyn 3.5v Diagnostic Set with AutoStep Sealed Ophthalmoscope, Diagnostic Otoscope, Convertible Handle, and Hard Case (Model 97300-C ) makes performing a physical diagnosis is easier with Welch Allyn's medical diagnostic instruments featuring our 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.Additional Features:Handle accepts all Welch Allyn 3.5V headsKey Components:3.5v AutoStep Coaxial Ophthalmoscope Head Only3.5v Halogen Lamp3.5v Diagnostic Otoscope/Throat Illuminator without Specula (Head Only)3.5v Halogen Lamp3.5v 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.