Comment Not entirely new... (Score 1) 110
This kind of tech has existed for a while; it's primarily used in surveillance gear, so that the earphones being worn by someone working in the field can't be seen. The downside of the current state-of-the-art, however, is that the wearer needs to have the induction coil under their clothing, around their neck. I'm really curious how this would work in stereo, personally, as all the solutions I've seen are only mono by requirement; there's no easy way to partition the field into two segments, to separate left from right.