Buying Extra Units for Travel
My wife and I bought 2 of these units a little more than 2 years ago.  Love that gentle ultrasonic cleaning. They continue to work great.<br />Use basic common sense, as with all electronic appliances.  Do need to keep dry; particularly the base where the battery and electronics are contained.  Rinse brush and extension arm only; not the base/handle.  Clean the attachment cavity each time battery is changed.  We chose this model at the beginning, because we didn't want to have to buy new units when a rechargeable battery die; nor wait for charge, especially when we travel. We are buying another 2 units just to put in our traveling kit bags.
Rating: 5 stars