2.5v halogen light source for true tissue color and long lasting lamp performance * Pocket clip with integral on/off slide switch for ambidextrous use * Lifetime Quality Performance Guarantee on optics * pocket otoscope features: * Fiberoptics for cool obstruction free light transmission * Wide angle removable 2.5x viewing lens permits instrumentation * Sealed system with included insufflator fitting for pneumatic otoscopy * Otoscope head made from polymid - an impact resistant space age thermoplastic * Welch Allyn disposable polypropylene ear specula in 2.5mm and 4.0mm sizes are convenient safe and economical AA metal battery handle interchanges with pocket Ophthalmoscope * Complete instrument includes insufflator fitting and tube of 5 each 2.5mm and 4.0mm specula * Pocket Ophthalmoscope features: 5 aperture selections (small aperture large aperture fixation aperture semicircle aperture and red-free filter) * 17 lenses from -20 to +20 diopters for better resolution * Illuminated dial * Silicon coated protection of glass components * Built-in lens dust cover * Rubber brow rest prevents scratching of eyeglasses * Ophthalmoscope head made from polymid - an impact resistant space-age thermoplastic * AA metal battery handle interchanges *