Dr Mom 3rd Gen Slimline Stainless Steel LED Light Pocket OtoscopeProduct features The LED advantage with a soft white light spectrum like incadescant halogen but without the FRAGILE filament of incandescent halogen. Our LED module built on a computer circuit board should never need replacement plus it has the advantage of very low power consumption. A set of batteries can last a year or more with regular use. Weblink with 30 high resolution photos of eardrum pathology along with use instructions Includes BATTERIES,