Magic Keyboard gives my wireless Bose headphones a crackling sound

Hi,

I have a MacBook Pro 2020, a Magic Keyboard 2015 and a Bose 700 bluetooth headphones.

When I have the headphones and the keyboard connected in Bluetooth - I often (approx. every 10 minutes) get some cracks on the sound. The sounds stops for a few milliseconds, and gets back, and stops again - like radio interferences.

I suspected the keyboard, so I wired it with a lightning cable and disconnected it from bluetooth. I get no cracks anymore.

Here is my question: is it normal to have that kind of issues with 100% Apple bluetooth peripherals and a high end Bose headphones ? Yes I have the latest MacOS. Yes I have the latest Bose firmware. And I think I had the same issue last year at work with a MacBook Pro 2017 and my Airpods.