ANC031 - Troubleshooting - Strange noise in ANC mode

Thanks so much for choosing Avantree, please don't worry since this product comes with warranty : ) 

To kick off the replacement process please read through this article first.. 

Part ONE - Usage issue - 

Please help us to confirm the headphones usage is right, since some wrong wearing ways may also cause noisy sound in ANC mode. 

1) Depending on how you wear the headset, the noise canceling effect may vary or a beeping sound (howling) may occur. In these cases, take off the headset and put it on again.

 *NOTE: ANC Headphones wrong usages including: Press hard on the earpads housing, metal earrings cover the noise cancelling mic, remove the ear cushions, moving head or walking quickly.. 

2) The noise canceling effect may not be pronounced in a VERY quiet environment, or some white noise may be heard.

Part TWO - Noise occurs in Bluetooth Mode when ANC activated  - 

1) If the noise is only exist in Bluetooth mode when you activated the ANC function, please confirm the operations range, some barriers may cause Bluetooth signal cut out and made some noises. 

2)Since the ANC function also drained battery, please fully recharged the headphones again to check if the battery still exist. 

3) Please rest the headphones by

Part Three - Noise occurs in Wired Mode when ANC activated  - 

1) If the noise is only exist in WIRED mode when you activated the ANC function, please confirm the audio cable works fine, some defective audio cable may cause noisy sound. 

2)Since the ANC function also drained battery, please fully recharged the headphones again to check if the battery still exist. 

3) Please rest the headphones by

If you confirm the headphones usage is right and the Bluetooth operational range/Wired audio cable is fine, but the noise still exist please feel free to contact support@avantree.com to kick off the replacement process. 

 

Also, if possible please provide the following answers with your product order number to support@avantree.com 

  1. How's your headphones battery level? Please fully recharge the headphones by around 3 hours first.
  2. Did you reset the headphones by the two ways? a) plug and unplug the 3.5mm AUX jack several times   b)ANC031 - Guide - Reset
  3. What does the noise sound like? consistent or inconsistent? 
  4. Which mode does the noise exist in? Wireless or Wired?  
  5. Does the noise only exist in a moment of ANC function be activated? 
  6. Does the noise only exist during music playback?
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