Wireless

When we heard about the Sync by 50 headphones from SMS Audio, our hearts soared. We hoped that company founder and hip-hop star 50 Cent — or Fiddy, or Fif, or Cent, or Curtis, or whatever the hip-hop cognoscenti are calling him this week — would tap his fabled entrepreneurial skills and no-nonsense business attitude to create the world’s first hip-hop headphones that don’t at least kinda suck.

The CD is dying. iPod sales are declining. More and more, people are getting their music from … well, everywhere: MP3s stored on a hard drive, Internet radio and music services like MOG, Pandora and the recently hyped Spotify.