I am not sure exactly how you are thinking of utilising microwaves to any advantage here. Microwaves, when used for cooking, are basically radio waves around 2.4GHz, which is a good absorption frequency for water molecules. This is why it is good for cooking. It penetrates objects and heats the wate...

This is really an awesome idea but i think some precaution are recquired as the product consists of two parts, a tooth brush and a sound unit. #The sound component must be installed in a high position where water cannot wet it. #In the event of the toothbrush not being in use for a long time while t...