Bests & Worsts Reviews from Amazon

I purchased this otoscope to examine my dog's ears and to use on medical missions. My fur baby has allergies and frequent ear infections. However, his ear drums were obscured by wax. So I examined my husband's ears Instead. This otoscope was perfect. The lighting was good. It was easy to use. I'm not sure what the bad reviews were about. Perhaps those reviewers received defective otoscopes, or perhaps they did not know how to use an otoscope. I am a physician who has used many different types of otoscopes. I assure you this one is adequate for at home use and probably for the office as well.