The Riester Econom 2050 ENT Diagnostic Set is illuminated by a 2.7 V vacuum lamp. The fluted handle surface is hygienic and allows for a secure grip. The ENT Set plug into wall plugs for quick and easy charging of the batteries. The Otoscope and Ophthalmoscope  set includes: Otoscope head, ophthalmoscope head, expandable nasal speculum, bent arm illuminator, 2 laryngeal mirrors, tongue blade holder, replacement otoscope bulb, and hard protective case.