MODEL- AHP712i            VENDOR- ALTEC LANSING
    
FEATURES- Noise Reducing Headphones
       The superb-sounding Altec Lansing AHP712i headphones with Active 
        Noise Reduction are ideal for the frequent traveler and anyone in a 
        noisy environment. Active Noise Reduction technology uses small 
        microphones to "listen" to ambient sounds and special circuitry to 
        create a sound wave 180 degrees out of phase from the ambient 
        sounds. When the sound wave is played through the headphones, it 
        reduces ambient noises, such as airplane engines and subway 
        rumbles, to allow you to focus on your music, movies or games. 
* Wide-spectrum Active Noise Reduction and closed ear-cup design promote 
  pleasant travel by virtually eliminating unwanted noise. 
* High Performance 40mm neodymium drivers deliver a wide frequency response 
  and bass you can feel! 
* Adjustable deluxe padded headband and leatherette ear pads for long 
  lasting comfort. 
* Features foldable design for easy packing, handy multi-function 
  controller, carry bag with accessory pouch, two choices of cable lengths, 
  as well as airline and 0.25" adapters. 
      
  -- SPECIFICATIONs -----------------------------------
CONNECTOR         - 3.5mm plug
FREQUENCY RESPONSE- 20 Hz ~ 20 kHz
IMPEDANCE         - 32 ohms
NOISE REDUCTION   - > 19 dB from 40Hz ~ 12 kHz
    www.altecmm.com