You don't have to worry about your children not brushing their teeth, because with the Philips Sonicare for Kids HX6322/04 Duo-Pack, brushing becomes a fun activity. These toothbrushes teach your children, starting at the age of 6, a good brushing routine in a playful way. You can connect the toothbrush to the corresponding smartphone app via Bluetooth, where your child receives a reward after each successful brushing session. The toothbrush features a sensitive mode for younger children and a standard brushing mode for older kids. Additionally, there is a built-in timer that indicates when the 2 minutes are up, even if you are not using the app. The powerful battery lasts about 3 weeks, and you receive 2 brushes per toothbrush. The brushes have an elongated shape that makes brushing similar to using a traditional toothbrush.