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Hi Slade, Thank you for your question. If you are asking if there's a known issue regarding hissing noise or feedback when the noise cancelation feature is turned on, the answer is no. Our Sony WHCH720N does not have any unwanted noise when the noise cancelation is turned on. Featuring Dual Noise Sensor technology and an Integrated Processor V1, the WH-CH720N allows you to fully immerse yourself in music without any distractions. Ergonomically designed to be lightweight, comfortable, and with up to 35 hours of battery life, you’ll almost forget you’re wearing it. I hope this helps and thank you for considering Sony. Regards, Marco
Sorry, there was a problem. Please try again later.Absolutely not. I couldn't hear any hissing and mione are set to noise canceling.
Sorry, there was a problem. Please try again later.No to both questions.
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