Welch Allyn 3.5 V Halogen HPX Otoscope Set (25270-M). Welch Allyn 3.5 V Halogen HPX Otoscope Set with MacroView Otoscope with Throat Illuminator (#23820), 60-Minute C-Cell Power Handle(s), Hard Storage Case; Reusable Ear Specula (#24400-U); Nickel-Cadmium (#72300) Battery; IEC Plug Type-A. Priced per set.