I saw this amongst the NAMM releases. There is a problem with this I can see already... for a lot of people, unless you are built like quasimodo, the transducer is not going to be in contact with your body. Unless that thing is pressed up right against your body, a great deal of kinetic energy is going to be lost - or not felt at all. For me, I think the woojer is still the winner, as you can move it around your body - for every musician I know first hand who have used it, they all put the woojer on their waist. This doesn't look like an option for those sporting a back beat. I dont like the fact that the controls would be on your back too. Personally, a picture of Victor Wooten with said product doesn't do it for me... I think I would stick with the woojer.