54102A Includes Only:Standard Otoscope, LEDCoax Plus Ophthalmoscope, XenonBattery HandleHard Case (9"x5.5"x1.75")3.5V Standard Otoscope Head Features:Fiber-optic light transmission for an unobstructed viewOptical glass reduces reflection and provides 3X magnificationBidirectional swivel lens allows instrumentationInsufflator port for pneumatic otoscopyCompatible with Welch Allyn speculaAnti-theft locking feature is standardCoax Plus Ophthalmoscope Head (p/n 5442) Features:High-performance aspherical condenser lens reduces corneal reflectionFurther reduction provided by utilizing distinct parallel observational and illuminating light beams (Gullstrand's Equation)Ergonomic design and integral thumb rest improves stability and allows one-finger control of all functionsSynthetic rubber brow rest facilitates use with practitioner eyeglassesDust proofMagnified, illuminated aperture viewing windowUniversal bayonet mount for compatibility with other brands of 3.5V power supply handlesAnti-theft locking feature is standard89 viewing lenses from -44 to +45 in single step28 aperture/filter combinations for improved diagnostic capabilitySecondary focusing wheel with zero retention for quick correction of ametropias, provides virtually unlimited fine focus or fast focus in lieu of the 89 viewing lensesThe addition of a Karo (grid) aperture that allows for easier transfer of observations to standard Karo (graph) paper6 Apertures include:Slit - used to help determine levels of tumors and lesionsFixation - has graduated crosshairs for measuring eccentric fixation or locating lesionsLarge - standard aperture for a dilated pupil and general examination of the eyeSmall - provides excellent view of fundus through an undilated pupilMicro spot - allows quick entry into small, undilated pupilsHalf moon - provides a combination of depth perception and field of view3 Filters (plus neutral) include:Red free - excludes red rays from examination field for easy identification of veins, arteries, and nerve fibersCobalt - used with fluorescent dye to view small lesions, abrasions, and foreign objects on the corneaPolarizing - virtually eliminates corneal reflectionBattery Handle Features:C-sized handle with 1400mAh Li-ion batteryCNC machined from solid brass, the handle is chrome plated in black with a ribbed surface for a sure gripAdtronic electronic rheostatic light intensity control provides infinite continuous control and auto-off feature after two minutesTop half of handle unscrews to access U.S. wall plugLi-ion battery provides two to three hours continuous use with halogen/xenon lamp, 30 hours use with LED lamp when charged for 24 hoursUp to 1,200 charge cyclesUniversal bayonet mount for compatibility with other brands of 3.5V instrument heads3.5V Diagnostic EENT instruments are among the most critical toolsets in a clinician's repertoire when performing a comprehensive physical exam. ADC Diagnostix-brand EENT instrument sets help practitioners perform fast, accurate, and efficient exams thanks to innovative optics, advanced lighting technologies, and long-lasting power sources.