There's a module you can add to the Spooky2 to boost the output for contact mode. When I first purchased the device I tried contact mode(with electrodes) and found the output amplitude to be completely useless on contrast to my Beck style devices. And so I decided to try the Spooky Boost device which solved that issue.
That said, I'd summarize that while the output still isn't as powerful as a classic Beck device, that it is sufficient in my opinion.
"What do you think about the transfer of a signal at a distance without using "free" electrons or emf as a medium ?"
It certainly didn't work for me. ie, as a long term sufferer of a systematic infection the Spooky 2 remote(s) (in my own cases) proved to be completely useless. ie, my wife helped run trials for me in which I would take no treatments to contrast with the Spooky2 remote sessions, only to find that the Spooky2 was completely indifferent to taking no treatments whatsoever.
And so my take on this is that the Spooky2 remotes simply didn't work in my cases. To which I'd add, I tried; nail, skin, saliva and hair samples - without success
PS. I also tried two units running 24/7 in both treatment and repair mode - without success
Having said all that, I will say however that I have found incredible success using the Spooky2 unit in contact mode by placing electrodes on the infections sight(jaw bone). To which I'd add, the Spooky2 unit has proven to be indispensable in terms of creating custom programs for the task. Such as fade-in and out, wobble and duty cycle phasing. All of which make it possible to apply the treatment in delicate situations such as the jaw bone.