Philips Sonicare A3 Premium All in One Genuine Replacement Toothbrush Heads White 2 Pack HX9092/65 The Philips Sonicare Premium All-in-One brush head combines plaque removal, gum health and whitening into one brush head, so you don't have to choose any longer. Designed to work with all click-on Sonicare models, these brush heads remove up to 20x more plaque than a manual toothbrush while gently improving gum health up to 15x in just 6 weeks (vs. a manual toothbrush). Use with a Philips Sonicare BrushSync compatible handle (DiamondClean Smart or ProtectiveClean) to unlock Smart features: BrushSync mode-pairing triggers your handle to select optimal mode and intensity level for exceptional plaque removal (certain models only) while BrushSync replacement technology tracks how often and how hard you brush and will notify you when it is time to replace your brush head. Also, reminder bristles fade to let you know when it's time for replacement. Replace your brush head every 3 months as recommended by the American Dental Association. A fresh brush head every 3 months maximizes the effectiveness of Philips? unique Sonicare technology. * vs. a manual toothbrush ** vs. a manual toothbrush in 6 weeks *** allocated to plastic of brush head on mass balance basis **** vs. a manual toothbrush in 6 weeks