This Review Title is These are great! and the content is: These are great.  Had to cut off the hair on top of my head for topical chemo.  I have a low tolerance for vibration on my head - electric toothbrush nearly made me pass out.  So I got this based on the reviews and it is everything they say - quiet, low vibration and works well.  Very pleased with my choice!.There are other information for this review, one is This reviewer did purchase it and the other is 0 people think this review is helpful.