Welch Allyn 3.5V Prestige Diagnostic Set The perfect set for general use in your busy practice. 3.5V Coaxial Ophthalmoscope Head: • Halogen HPX bulb gives 30% more light than halogen for truer tissue colour • 6 apertures: small, medium, large, spot target, slit and cobalt blue 3.5V MacroView Otoscope: • Insufflation port for pneumatic otoscopy • Better clarity and definition of landmarks • Fibre optics produce cool light with no reflections, no obstructions • Throat illuminator • Supplied with a C Cell Handle.