Sony MDR-NC22 Noise-Canceling Ear Bud Headphones

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.

Sony MDR-NC22 Noise-Canceling Ear Bud Headphones Features:

Reduces noise by 70% (12dB at 300Hz)
Closed, dynamic, noise-canceling, portable ear bud style
L-shaped stereo mini plug (Gold)
Monitor switch turns noise canceling off and silences the music
Includes:
AAA Battery (Manganese)
Pouch
In-flight plug adapter
Ear pad
3 sets of ear bud cushions (S, M, and L)
Warranty card
Neodymium magnet
Driver unit: 13.5mm diameter, dome type
Sensitivity: 102dB/mW (when power is on), 100dB/mW (when power is off)
Frequency response: 8-22,000Hz
Impedance: 20 ohms at 1kHz (when power is on), 8.5 ohms at 1kHz (when power is off)
Frequency range: 50-1500Hz (active noise attenuation)
Frequency range: More than 12dB at 300Hz (range of active noise attenuation)
Power handling capacity: 50mW
Battery type: DC1.5V, 1-size AAA battery
Battery life (Approx.): 50H with alkaline battery
Weight (Approx.): 39g (including AAA battery)
Noise reduction: noise-canceling on/off switch on battery box - Red LED means on
Cord: 1.5m (including battery box); OFC neckchain type

Sony MDR-NC22 Noise-Canceling Ear Bud Headphones Includes:

AAA batteries, pouch, in-flight plug adapter, ear pad, 3 sets of ear bud cushions (S, M, and L)