An otoscope commonly offering 2.5x to 4x magnification with interchangeable components like specula & ophthalmoscope with interchangeable components like diopter wheels correction lenses from –25 to +40 a Handle w/ C Size 1.5Volt × 2 batteries-powered and tools for throat examination, like a laryngoscope or laryngeal mirrors, and a nasal speculum, along with reusable & disposable specula’s and storage case.