The Oral-B IO 9 is a smart electric toothbrush that outshines any ordinary hand toothbrush. The toothbrush includes an interactive display that relays important information. For example, the display indicates when it is time to replace your brush head, whether you have brushed properly (or not) and which brushing mode you are using at that time. The toothbrush has seven different settings including even tongue cleaning. Once you've tried the Oral-B IO 9, you'll never want to go back to a regular manual toothbrush!