Researchers at the Korea Advanced Institute of Science and Technology have developed a chip that allows you to listen to an iPod using your forearm as the transmission wire for the audio signals.

To reduce power consumption and boost data rate, the chip sends low-power ultra-wideband signals over a wide range of frequencies, rather than sending a high-power signal at a narrow frequency.

The chips can produce data rates of up to 2 megabits per second while consuming less than 10 microwatts,