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 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).

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.

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.

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

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

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

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.