We evaluated our HP-NC1s as a utility crew used jackhammers on the street outside our listening room. Because you can bypass the Noisebuster technology with a switch, it was easy for us to compare the noise-canceled signal to the standard sound. While Noisebuster didn't entirely eliminate the jackhammer's rat-a-tat-tat, it did significantly reduce the sound so that we could listen to quiet music, such as soft jazz and classical.<P> As for the sound of the headphones themselves, the midrange is clear, but the HP-NC1s are a little sluggish overall, with no deep bass or extended high frequencies. In fairness to the HP-NC1s, noise-canceling headsets often sound restricted in the frequency extremes, as it can be tricky for the noise-canceling devices to differentiate between noise and music. The fit of these headphones is also a little snug for our taste, but you can loosen them a bit by gently bending the headset.<P> We have heard comparably priced, non-noise-canceling headphones that sound better than Maxell's HP-NC1. However, better sound doesn't matter much if you're having a hard time hearing the music in a noisy environment. At this price, these headphones are a bargain.<P> Pros:<br> <ul> <li>Noisebuster technology works well <li>In-flight dual-jack adapter included <li>In-line volume control </ul>

Cons:<br> <ul> <li>Snug fit may be uncomfortable <li>Average sound quality </ul>