Re: Bose QC 35 Firmware 4.5.2 Noise Cancellation Investigation Discussion
As an alternative...I bought a wired cable with mic in Ebay plug it in while ANC is on.
Result is awesome..they barely hear the background and audio is clear both incoming and outgoing.
You might check your Input device settings. Connecting the cable to the headphones disables the mic-input. It could very well be that when using bluetooth you have another mic (f.e. from your laptop or mobile phone) connected as the input device, which makes you hear all kinds of external sounds in the headphone.