Japan's KDDI Labs and Kyocera used a booth at the back of CES to demonstrate a surprisingly clever audio technology in the US for the first time. Badged as a speakerless smartphone, it vibrates the audio canal to transmit any audio through the entire body of the device it's playing from. We could listen from the top, bottom, or even the back of the prototype Android phone the group had on show, and it was reasonably loud and clear even in a noisy CES show floor environment.
