https://community.sony.fi/t5/portable-audio/wh-ch700n-noise-with-cable-when-powered-on/m-p/3752561#M10827 <P>When using the headphones with a cable whilst powered on a loud hissing noise occurs despite the cable not being plugged in at the other end. Note that there is no noticeable noise when using the cable with headphones turned off or when using Bluetooth. This has occurred from day one (2nd January). I am wondering if this is normal as it would be nice to use noise-cancelling without Bluetooth.</P> Wed, 06 Jan 2021 14:37:34 GMT Thalarctos 2021-01-06T14:37:34Z https://community.sony.fi/t5/portable-audio/wh-ch700n-noise-with-cable-when-powered-on/m-p/3752561#M10827 <P>When using the headphones with a cable whilst powered on a loud hissing noise occurs despite the cable not being plugged in at the other end. Note that there is no noticeable noise when using the cable with headphones turned off or when using Bluetooth. This has occurred from day one (2nd January). I am wondering if this is normal as it would be nice to use noise-cancelling without Bluetooth.</P> Wed, 06 Jan 2021 14:37:34 GMT https://community.sony.fi/t5/portable-audio/wh-ch700n-noise-with-cable-when-powered-on/m-p/3752561#M10827 Thalarctos 2021-01-06T14:37:34Z https://community.sony.fi/t5/portable-audio/wh-ch700n-noise-with-cable-when-powered-on/m-p/3755853#M10871 <P>I think it's normal to hear noise if the cable is unplugged as what you hear is just static.</P> Mon, 11 Jan 2021 16:32:01 GMT https://community.sony.fi/t5/portable-audio/wh-ch700n-noise-with-cable-when-powered-on/m-p/3755853#M10871 Win_88 2021-01-11T16:32:01Z