Sony WH-CH710N On the noise canceling function

Sony WH-CH710N On the noise canceling function

• The noise canceling function senses external ambient noise (such as the noise inside a vehicle or the sound of air conditioning inside a room) with built-in microphones, and produces anequal-but-opposite sound that cancels out the ambient noise.
  • The noise canceling effect may not be pronounced in a very quiet environment, or some noise may be heard.
  • The noise canceling function works for noise in the low frequency band primarily. Although noise is reduced, it is not canceled completely.
  • When you use the unit in a train or a car, noise may occur depending on street conditions.
  • Mobile phones may cause interference and noise. Should thisoccur, locate the unit further away from the mobile phone.
  • Depending on how you wear the unit, the noise canceling effect may vary or a beeping sound (howling) may occur. If this happens, take off the unit and put it back on again.
  • Do not cover the microphones of the unit with your hands or other objects.
    Doing so may prevent the noise canceling function or the Ambient Sound Mode from working properly, or may cause a beeping sound (howling) to occur. If this happens, take your hands or other object off of the microphones of the unit (Fig. C).
    

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