“I have been using electric toothbrush for many years and recently switched to Zenyum Sonic toothbrush. I feel it cleans better than electric toothbrush and also more gentle on the gum. It exceeds my expectation!”
“It is a nice model. As said, there should be an individual power button. Also, there is a gap between the brush insert and the body. Will there be a risk of electrical shock or corrosion upon a long term of usage?”
