Why this question?
There is a lot to say about the convenience of online training, one is for sure the convenience of being at home and do the distant learning. It is a very successful way to learn in many subjects.
When it comes to subjects that has a practical aspect, I believe that in person training is the only way to do it.
Auricular detoxification training should only be done in person. This eliminates the doubt that a student knows exactly what to do when placing needles in a human ear, and the trainer can observe the students bedside manners firsthand.
A trainer will rob the student from a genuine opportunity to learn the full scope of this protocol.
Beware of money mongers selling online ADS training. There is no short cut to this learning.
Be sure to be certified.