The Oral-B iO Series 9 toothbrush is as the name might suggest – an electric toothbrush. Electric toothbrushes always provide for better cleaning than manual ones. The major issue with them is the cost of the toothbrush, and eventually the toothbrush heads. Based on the image, there are 4 toothbrush heads which should last at least a month before needing to be replaced. I will look for replacement heads three months in. You can find this toothbrush for $300 on Amazon.