Listen to your music, not the noise around you. No matter where you go, enjoy peace and quiet with the MDR-NC22 Noise Canceling headphones. These compact and comfortable bud-style headphones can reduce noise by 75% (12dB at 200 Hz) and the 13.5mm Driver units produce powerful sound. Perfect for tuning out noise at work, traveling, or even when you are trying to sleep in a loud environment. The noise canceling circuit actually senses outside noise with built-in microphones and sends an equal-but-opposite canceling signal to the headphones. Additional features include an in-flight adapter, compact battery box and it even comes with a carrying pouch. In-flight adapter and carrying pouch included. High quality noise canceling Built-in Monitor Switch for quick on/off operation Up to 75% (12dB at 200 Hz) ambient noise reduction 13.5mm Drivers EX type for improved sound quality

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