Genuine Philips Sonicare rechargeable electric toothbrush head compatible with all Philips Sonicare click-on rechargeable toothbrush handles Recommended power toothbrush brand by Dental Professionals Improves gum health up to 100% versus a manual toothbrush Gently removes up to 6x more plaque along the gumline than a manual toothbrush BrushSync mode-pairing & replacement reminders when used with a BrushSync compatible handle (DiamondClean Smart or ProtectiveClean)