Wireless Noise-cancelling headphones

[Stewart]

(WH-1000XM3) When streaming audio from my iPhone, I hear a chime after about 5 seconds, which inactivates the noise-cancelling feature. I turn NC back on however the chime occurs about 5 times during my 40 minute gym workout. I have factory reset the headphones but the problem persists.

[HannahEd01]

Hi Stewart, try the below:

-Update: 

https://www.sony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm3/downl...

-Reset: https://helpguide.sony.net/mdr/wh1000xm3/v1/en/contents/TP0001703078.html 

-Initialize: https://helpguide.sony.net/mdr/wh1000xm3/v1/en/contents/TP0001703081.html 

-Test with another phone.