Electric toothbrush three-dimensional animation | "Brushlee" American crowdfunding video

Sonic toothbrush means that the vibration frequency of the bristles/brush head is the same or similar to that of the sonic wave, so it is also called a sonic vibration toothbrush. It is not literally understood to use "sound waves" to brush teeth, but the rapid movement of bristles similar to the vibration frequency of sound waves creates a super cleaning effect that is nearly 100 times higher than that of traditional manual toothbrushes.