Products Support

zh/en

Healthy lifestyles start here. Sign up and get exclusive offers

Healthy lifestyles start here. Sign up and get exclusive offers

All series

Philips Sonicare DiamondClean Prestige 9900 Rechargeable Toothbrush

Support

Philips Sonicare DiamondClean Prestige 9900Rechargeable Toothbrush

HX9996/11

HX999C

Philips Sonicare DiamondClean Prestige 9900 Rechargeable Toothbrush

Available in

Go to shop

Register your product

Get your extended warranty

Register within 90 days after purchase and get an extended warranty (conditions may apply).

Manuals & Documentation

User Manual

PDF file, 2.4 MB
12 May 2026

EU Declaration of Conformity

PDF file, 696.7 kB
29 June 2026

Frequently Asked Questions

Troubleshooting

Warranty and service

Check the terms of your warranty and start a product exchange or repair

Warranty

Our product warranty policies