Review on 💪 Black Oral-B Pro-Health Clinical Battery-Powered Electric Toothbrush for Superior Clean by Beth Martin

I've bought similar batteries from Oral B before. I use them for travel. This arrived quickly but never worked. I'm fed up with fresh batteries and it still doesn't work. I think the switch might be cheap and not work. UPDATE: I read several reviews and finally found one that explains how to put batteries in. Inside the battery compartment are small "+" and "-". one battery goes up and the other goes down. It's almost impossible to see this in the cabin. Terrible design; Had I not seen this explanation in the review, I would have thought the toothbrush was broken.