What looks to be like some extra-terrestrial implants, are what Plantronics is calling the MX100s. These are the latest in iPod listening, styling and efficiency accessories to hit the streets. They are designed to fit into a 2.5 mm and 3.5 mm headphone jack simultaneously, that means your normal iPod (or mp3 player) and a cell phone (maybe even the ROKR).
The feature that makes these worth talking about is the ability to switch between devices, with the press of a single button, you can toggle back and forth between your iPod and cell phone.
Read more from the source.