FAQs

Can I use my toothbrush in the shower?

Your Curvy Toothbrush was designed to be 100% waterproof, you can brush your teeth under the shower with serenity or clean your toothbrush handle.  It will not damage your device.

When to charge my toothbrush?

When you receive your Curvy Sonic Toothbrush, you will need to charge it for 24h before using it for the first time. Once it is fully charged, you can charge when it runs out of battery (red light blinks).

My toothbrush is not working. What can I do?

If your toothbrush is not working, charge it for 24h. If it is still not working after 24h of charge. Please contact our warranty claim team so they could assist you with your non working device.

My toothbrush blinks in red. What does it mean?

When your toothbrush is showing a red indicator light, it means that your toothbrush is running low on battery and we recommend you to charge it.

How long does the toothbrush battery last?

Your toothbrush battery can last for up to 30 days. You can travel without having to carry your charger around.

I am travelling soon, is my toothbrush allowed in my carry on?

Yes, the battery of your Kyoui Toothbrush is Ni-MH so it is allowed in your carry on.

How often do I need to change my brush heads?

We recommend changing your brush heads every 3 months and subscribing to your brush heads replacement, so you will not forget to change it.

I do not know how to change my brush heads.

Twist and Pull. When the brush heads are new, they can be a little light. Please be gentle. Watch a video to learn how to change your brush heads.