The misleading thing about the “FDA Approval” sited for devices like “Finally Free” is that they are coming in under the “Substantially Equivalent” clause. Basically, the machine is based on the design of real electrolysis equipment. On the other hand, it is outfitted with contacts that can not effect permanent hair removal. To the point, a contact patch, or wet cotton swab will not deliver permanent hair removal, only a probe inserted into the follicle itself will. Replace their contact patch or swab holder with a needle cord, and the machine will actually work.
Of course, that is like saying, buy this car, and replace its ski sled legs with a rack and pinion suspension and wheels, and you have a working car.
It is just easier to buy a real device in the first place, than to buy these overpriced items, and pay even more to modify them.