Philips Sonicare DiamondClean Prestige 9900Rechargeable Toothbrush

What features can I activate or deactivate from the toothbrush handle?

How does the Scrubbing Feedback feature work?

How does Sonicare 9900 Prestige work with the app?

How does the BrushPacer work on my Philips Sonicare Prestige Toothbrush?

Can I use Sonicare 9900 Prestige if I wear braces or have dental modifications?