Diagnostic Set with LED Otoscope & Halogen OphthalmoscopeIncludes:5420 LED Otoscope5440 Coax Plus Halogen/Xenon Ophthalmoscope5460 HandleSoft CaseDiagnostix™ 3.5v Coax Ophthalmoscope Head features:High performance aspherical condenser lens reduces corneal reflectionFurther reduction provided by utilizing distinct parallel observational and illuminating light beams (Gullstrand's principal)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 standard2 year warranty on instrument. Lifetime on AdLED lamp29 viewing lenses from -35 to plus 40 (Plus 1-10, 12, 15, 20, 40 – Minus 1-10, 15, 20, 25, 30, 35)24 aperture/filter combinations for improved versatilityDiagnostix™ 3.5v Diagnostic Otoscope Head features:Fiberoptic light transmission for an unobstructed viewOptical glass reduces reflection and provides 3x magnificationBidirectional swivel lens allows instrumentation. Insufflator port for pneumatic otoscopy. Compatible with Welch Allyn speculaUniversal bayonet mount for compatibility with other brands of 3.5v power supply handlesAnti-theft locking feature is standard2 year warranty on instrument.Diagnostix™ 3.5v Plug in Rechargeable Battery Handle features:C sized handle with 1400 maH rechargeable 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 2 minutesTop half of handle unscrews to access wall plug (available in US or Euro fittings)Li-ion battery provide 2-3 hours continuous use with Xenon, 30 hours use with LED when charged for 24 hours. Up to 1200 charge cyclesBayonet instrument mount is compatible with all major brands of 3.5v instrument heads2 year warranty.