Eurolight ophthalmoscope head e10 and combilight c10 otoscope head with interchangeable handle ophthalmoscope head has correction lens wheel of stages +/- 20 diopters and 6 diaphragms large examination field of the fundus of the eyes otoscope head features standard illumination with 25v vacuum bulb, 3-times magnification and rotating lens 3 reusable ear specular, 1 each 25mm, 35mm and 40mm includes chromium-plated nose speculum, spare 25v bulb and 2 laryngeal mirrors (sizes 3 and 4) requires 2 c batteries (not included) or kawe rechargeable battery hard case