These earbud-style headphones rely on Neodymium transducers, a rare earth magnet that significantly enhances frequency response and overall sound quality. M8751G/A's wired remote lets you fast-forward, rewind, play/pause, and control the volume with four simple buttons. The Hold switch allows you to lock your iPod remote so buttons can't be pressed accidentally. Clip the remote to your lapel, shirt, or collar for easy access.