| 摘要 |
PURPOSE: An electric toothbrush is provided, which can be helpful to the tooth health by measuring time while brushing teeth. CONSTITUTION: A small timer and a small speaker are added to the main body of the electric toothbrush. If a user presses a switch of the main body of the electric toothbrush, the small timer and small speaker are operated. Music is outputted through the small speaker. If the small timer counts three minutes, the outputted music is stopped. The sound is outputted through the small speaker. |
