“I am trying to understand the vibration speed in the two intensity settings. Where can I get a user manual from? (When you search for it on the Philips website it says the product is no longer available and no user manual is found)”

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• I had the same question and the answer is in the manual that comes with the toothbrush. To change speeds, you press the power button and then, quickly, press it a second time.

  Answered by Earlyadopter 2 years ago

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• The Philips Sonicare 4100 Power Toothbrush is in Clean mode. Also, this gives you the option to choose between 2 different intensity levels. Feel free to contact us so we can further assist you if you have other concerns. Call us at 1-800-682-7664, Monday - Sunday 9:00 AM - 6:00 PM EST. A live chat is also available from the Philips Contact Page.

  Answered by Answered by Philips 3 years ago

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