The next size up “Dr. Mom” scope, which is comparable in size to a Welch Allyn, uses 2 C batteries and this uses a single A, so I think everybody knows the difference. Professional look – This matters to me since I will occasionally use it on patients outside my office. The “Dr. Mom” inscription on the pocket clip was a non-starter.

https://www.amazon.com/Generation-Dr-Mom-Pediatric-Disposable/dp/B00AJDZJCW