Where can I buy brush heads?
You can purchase it at Amazon.Always use the original equipment for replacement brushes.
Where can I download the oclean app?
Search "oclean" from APP store PLAY store or download from official HP.
About Connecting Applications
The toothbrush and smartphone are connected via Bluetooth.Turn on the Bluetooth function of your device.Also, grant the application permissions to the Bluetooth function.If the connection cannot be connected, press and hold the power button on the electric toothbrush for about 20 seconds to reset the unit once.
How to Use Touch Screen
The touch panel can be controlled by sliding up and down, and left and right to adjust various settings.If there are many water droplets on the main unit, you may not be aware of this product, so please wipe off the moisture on the body and your hands.