PHILIPS Electric Toothbrush Heads Official Original European Import Compatible with Diamond AI Series Handle Cleaning Gum Care Whitening Premium 3-in-1 Brush Heads 4-Pack HX9094/86 Black

Up to 20x more effective plaque removal compared to manual brushing

Patented dual kinetic ring design delivers lossless kinetic energy to bristle tips

Transmission ring located at brush neck core for key energy transfer

Stability ring enhances structural stability ensuring consistent energy transmission

Soft, highly rounded bristles imported from Europe for gentle gum care, suitable for sensitive gums and enamel

AI-generated bristle arrangement for optimal cleaning and gum protection

RFID smart chip technology for automatic 3-month replacement reminders

Brush head replacement indicator light on handle for timely alerts

Automatic brush head model recognition and mode matching with compatible handles

Dentist recommended to replace brush heads every 3 months; bristle color fade indicates replacement time