FREQUENTLY ASKED QUESTION
What kind of charging adapter does it come with?
Do I have to pay extra to get a warranty?
Can I use it while charging?
Is this a certified product?
Is this device suitable for all skin types?
How long should I charge the device for the first time?
Is it waterproof?
What is the ultrasonic frequency of this device?
How often should I use the this?
What is the battery life of this device?