Professional 3.2V Veterinary Otoscope and Ophthalmoscope - LED **NEW for 2015 now LED **3.2V ultra-bright LED lamp for bright illumination. Optical Quality Glass 5x magnifying lens with scratch resistant coating. Rheostatic on/off switch for variable light intensity. Veterinary length Autoclavable, polypropylene ear specula in sizes 4mm, 5mm, and 7mm specula sizes. Powered by 2 "C" cell batteries (not included). can also be used with rechargables