Description Thomson Elite Sharper Image Quiet Place Noise-Cancellation Headphones (FJ454)   ****  BRAND NEW, Never Been Used  **** For All Of Your Computer Needs! --   We Sale All Brands name, Highest Quality, Lowest Prices, (See my feedback we have a lots of satisfied customers)! Technical Details Active Noise Cancellation. Small microphones pick up surrounding lower-frequency noise Product Details ASIN: B000XG3QCU Product Description   Active Noise Cancellation. Small microphones pick up surrounding lower-frequency noise; electronics immediately generate opposite anti-noise sound waves, the result is peace and quiet at the push of a button. Enjoy a substantial 30 decibel reduction of ambient noise at 300Hz. Passive Noise Reduction.   The name really says it all; these headphones are the best when it comes to outside noise reduction. With these headphones, you can enjoy peace and quiet while listening to your favorite tunes. The only downside is they are a bit pricey. At around $150, you will get exactly what you pay for and it’s no surprise that Sharper Image carries this piece of technology. The Quiet Place Noise-Cancellation Headphones feature SRS WOW Technology which really enhance the sound of audio including MP3’s and CD’s, you really will hear a huge difference in the quality of your sound. These headphones only need two AAA batteries, so you really don’t have to go out of your way to power up these babies. Just imagine that you’re in a room with surround sound stereo speakers, which is what these headphones sound like when you are listening to your music. Distortion rates are at a market low as you really don’t hear any, even if the volume is tuned close to the max. Since Shaper Image makes this technology, you can only purchase them at Shaper Image. You can add a 2 year replacement guarantee for an extra $19.95, which isn’t bad seeing that you are already paying about $150 for the headphones. These headphones are best used near loud areas including airplanes, populated areas, college dorms, or anywhere you need to tune out annoying nagging.