SlashGear JapanAfter speculation that Apple was using the new iPod shuffle 4GB to launch an “authentication chip” which only licensed headphones would offer, Apple themselves and a number of third-party accessory manufacturers have spoken up about the smallest iPod’s hardware. V-moda, Monster Cable and Scosche have all described it as a “control chip”, which uses the microphone channel in the four-channel headphones to send multiple commands: play, pause, volume control and more.
