The Highest rated least expensive otoscope sold on Amazon. Buy it and you will understand why. Finally, an inexpensive yet very functional 3-volt otoscope for home use! A bright reliable bulb with a soft natural light spectrum and a durable lightweight all-metal body and switch. A proprietary process of lens manufacturing was used for a crystal clear lens with zero distortion. Designed by an ER physician whose goal was to design an inexpensive otoscope that would be as functional in detecting eardrum abnormalities as the $400 models used at hospitals. Each otoscope comes with a web-page link that has high-resolution color photo's of normal and diseased eardrums as well as for instructions written by a physician describing how to properly use your otoscope for best viewing results. It explains the important information you need to know when using an otoscope to do ear exams. Take time to really read the most recent reviews on otoscopes before you purchase. Pay attention to how quickly a negative review will be followed by 5 or 6 positive review with in 2 or 3 days. If you see it fill up this quickly with 4 and 5 star reviews after a negative it is highly suspicious for incentivized reviews being used by a company on that product.