differences between hifu machines: ultratherapy, 7D, 12D, TT(MPT),14D, 22D

There are 4 standards for hifu machines: dots, RF/EMS, dots speed, it is why the hifu machine named as different dimensions, please see picture show the characteristics, it arranged according the time of listing.

For a new aesthetician, 7D is enough, but for doctor pursuing speed and effect, 22D is the best machines.