This is an ultrasonic toothbrush that I've been using for about 4 years. Compared to other products, the brush is soft, which helps prevent over-brushing, a common problem with electric toothbrushes. I chose this one because my dentist uses it. The paint is starting to peel, but there are no operational problems. It charges without any issues. I cleaned it with Utamaro and disinfected it with a sodium hypochlorite solution. I can also include a USB power adapter if you'd like, so please comment. - Brand: CURAPROX - Model Name: BLACK IS WHITE - Accessories: Charger - Features: Hydrodynamic technology, curved design - Design: Black, elegant appearance Thank you very much. (^^)