Full Featured Economy pocket otoscope and ophthalmoscope that sacrifice nothing but size. Includes one handle and one interchangeable otoscope and ophthamloscope head. Pocket Otoscope features a 2.5v halogen light source for true tissue color. Fiberoptics for cool obstruction free light transmission. Wide angle, removeable 2.5x viewing lens permits instrumentation. Otoscope head made from polymid, an impact resistant thermoplastic. Includes 5 each of the Welch Allyn disposable polypropylene ear specula in 2.75mm and 4.25mm. "AA" metal battery handle interchanges both heads. Pocket clip with integral on/off switch for ambidextrous use. Ophthalmoscope head features a 2.5v halogen lightsource for true tissue color. 5 Aperture selections (small, large, fixation, semicircle and red-free). 17 lenses from minus 20 to plus 20 diopters. Illumimated dial. Silocon coated protection of glass compoants. Built in lens dust cover. Ophthalmoscope head made from polimid, an impact reistant thermoplastic. Lifetime Quality Performance Guarantee on Optics