Are you 100% sure that your children are brushing their teeth properly? A New York-based startup called Willo has been working for several years on a device that should transform the tooth-brushing experience for children.

Willo isn’t a new toothbrush — electric or not. It’s an oral care device that doesn’t look like a toothbrush at all. The startup has worked with dental professionals to start from scratch with oral care in mind.

The device can be quite intimidating when you don’t see it in action, as it takes quite a bit of shelf space and you don’t know what you’re supposed to do. But when you see it in action, it looks easier than expected. Willo specifically targets children because they tend to struggle to reach every tooth and brush properly.

Kids are supposed to grab the handle and put the mouthpiece in their mouth. They can start brushing by pressing the button — and that’s it. They don’t have to do anything else. The silicone-based mouthpiece also features soft bristles. It starts vibrating in your kid’s mouth when they press the button.

The handle is connected to a bigger home station that contains a water tank with a special rinse liquid. Kids don’t have to use toothpaste and don’t have to rinse their mouth. Everything is handled by the device.

Finally, Willo is a connected device, which means that parents can track oral care in a mobile app. You can also set up multiple users — your kids will have to swap the mouthpiece before using the device.

If you’re thinking about buying a device for your children, Willo costs $199. You then have to pay $13 per month to receive rinse pods as well as new mouthpieces that always fit.

While the product is going live today, the startup has already tested it with real families. These children rated the device 4.73/5 and parents gave an NPS of 70+. They’ve all kept using Willo after the testing phase.

Behind this product, there’s a team of 33 people in France and the U.S. They have filed more than 50 patents over the past seven years — 30 of them have been granted so far. The company has raised $17 million in total funding from Kleiner Perkins, Bpifrance and Matt Rogers’ fund Incite.

It’s true that the concept of a toothbrush hasn’t changed at all. Making a device that changes the way you brush your teeth is an ambitious bet. But it’s clear that the startup has made a lot of effort to tackle this challenge. Now let’s see if they manage to convince parents.