Based on how fast they appear to be able to move the thing along the line, I would say induction and not actual a physical reel of wire. But is induction really possible?
On another note, is it just me? Or where is the advantage in using this over a normal extension cord?
By using SLIDEWIRE you will have useless wires laying all over the floor and table, they will get tangled up, are annoying to look at, and you will stumble over them, what is the point?
Wouldn't a 'classic' extension cable do the same job?
Leo