We are glad to see you care about brushing time. Dentists strongly suggest that we should brush our teeth for 2-3 minutes, or about 6 seconds for each tooth, when using a traditional toothbrush. However, unlike a traditional toothbrush, Chiiz brushes all of your teeth at the same time so we would have brushed nearly 14 mins in total if we're counting by each tooth. More importantly, 30 seconds is to ensure that the sonic vibrations work thoroughly.
No, sonic technology has been a common practice in sonic toothrbush and oral cleaning. On the contrary, sonic vibration does an excellent job in getting rid of plaque, especially in hard-to-reach area.
Current version is designed for people above 12 years old only. We have received inquiries during market research and user testing about that frequently. and we have plan to introduce kid version. Keep posted.