Maintenance-free otoscope designed with an all-metal housing and scratch-resistant glass lens.LED with virtually unlimited hours of working life, meaning there is no need to ever replace bulbs.3x magnification.Multi-coated glass viewing window offers high resolution and distortion-free images.Fibre optic illumination ensures homogeneous, very bright illumination and an unobstructed view of the ear canal and tympanum. Special optical interface to precisely integrate the LED illumination with the optical system.Patented, stepless dimming from 3% to 100% with practical one-finger operation. Viewing window is permanently attached, and swivels for instrument use and complete cleaning of the instrument head.Integrated insufflation port offers tympanic mobility testing without air leakage. Retinoscope/Opthalmoscope Set includes: Streak Retinoscope, Ophthalmoscope, Spare Bulb for Each Instrument for XHL Version, Hard Case and BETA Battery Handle.