DESCRIPTION

Sony's compact earbuds reduce ambient noise up to 70%. For plane, train or automobile, rely on Sony's advanced noise-cancellation to block unwanted noisewhile delivering concert-quality music even at lower volumes. These earbuds reduce noise by 70% (10dB) when the noise cancelling circuit is switched on. In addition, its 9mm driver units produce powerful sound for your listening enjoyment. So tune out noise at work, when you travel, or even when you are trying to sleep in a loud environment. The noise cancelling circuit actually senses outside noise with built-in microphones and sends an equal-but-opposite cancelling signal to the headphones.