Why does my Alviun Pro Care Sonic Toothbrush slightly stop while I’m brushing my teeth?

Our toothbrush has a 2-minute built in timer that every 30 seconds, it will slightly pause for a split second. The stop indicates that you have brushed for 30 seconds to remind you to move on to the next section, and it will continue to stop 2 more times, which make a total of 3 times if you’re brushing for 2 minutes. This function will not affect your brushing routine. Please note that each time you change the brushing setting, the timer will be reset back to 0.