3.5V otoscope set with Welch Allyn Macroview otoscope head and halogen bulb, NiCad rechargeable handle, and hard case, Twice the field of view with 30% more magnification, Full view of tympanic membrane with better clarity and illumination, Ability to manually adjust focus for variable ear canal lengths or farsighted eyes, Ejection feature for specula disposal, Uses Welch Allyn disposable specula, NiCad handle is rechargeable and plugs into stand