Bone Induction Transducers

Hi All and Andy,
Do you guys have any experience with Bone Induction Headphones with Kasina or Procyon? Looks interesting technology.
http://www.youtube.com/watch?v=bMnwgO8dxxQ#t=443
Please share.
Thanks
Raj

I have played with what I call BonePhones and they are interesting. I have these: Pineapple Rumble K http://www.amazon.com/Pineapples-Rum...apple+rumble+k

The sound quality is not great overall. The vibration is what is interesting though. It is especially strong around 150hz and below. I often use this with an audio splitter and regular headphones. I place them under the over the ear cups if they are large enough or under the band of the headphones. This is for 'tactile' entrainment by vibration which I like to experiment with.

I would certainly not recommend them as your primary headphones.

Maybe some of the newer ones are better.

I have tried these http://www.aftershokz.com/. Binaural beats and asymmetrical sessions are inefficient presumably by the lack of stereo separation by bone conduction. Isochronic tones work very well however. The benefit I see with these, is that you can listen to a lecture, exercise, or be able to listen for to such things such as a baby crying while doing BWE sessions.