Noise Cancelling Headsets

I know how important it is to get regular exercise, so I make sure I go for a brisk 30-minute walk every single day. I like to listen to audiobooks on my portable music player to help pass the time while I’m walking, but have encountered a major problem. Because I live in a high-traffic area, the sound from my MP3 player is often drowned out by the roar of car and truck engines, which means I tend to miss crucial bits of information. This is annoying, of course, so I finally decided to purchase a noise cancelling headset a couple weeks ago.
I actually didn’t even know that there were noise cancelling headsets available to average consumers until a friend suggested them to me.