The Sonic-FX™ warranty period is for 90 days and begins on the date of purchase. 

The warranty is the same for all Sonic-FX™ Toothbrushes purchased from an authorized seller. 

An authorized seller refers to a site which has been approved by Sonic-FX™ to sell our products, such as Groupon. If you have purchased your Sonic-FX™ f...

Yes—Groupon is an authorized seller of the Sonic-FX™ Toothbrush. Each Sonic-FX™ Toothbrush purchased on Groupon comes with a 90-day warranty which begins on...

In order for your Sonic-FX™ purchase on Amazon to come with our 90-day warranty, it must have been purchased from Sonic-FX™ on Amazon and not a third party ...

During the warranty period of 90-days (which begins on the date of purchase), if your Sonic-FX™ malfunctions due to a manufacturer defect during normal use ...

In order to determine if your purchase is covered under the 90-day warranty, we must be able to locate your purchase in our database or you may be required ...

If you received your Sonic-FX™ as a gift from a friend or loved one, please attempt to obtain the original proof-of-purchase from the buyer. If that is not ...

The warranty period begins on the date of purchase and is no longer valid after 90-days.  Please note that the Sonic-FX™ needs to be charged as soon as ...