Bluetooth headphones button event detection in javascript.

I am building a web app where i detect the headphones button event. I succeeded in capturing headphones button event when they are plugged in. Now i am trying to capture Bluetooth headphones next button event. Any help on this please.

Code for headphone button detection.

 document.addEventListener('volumeupbutton', () => {
   //Do something here
 }, false);

I need something similar to this.

from Bluetooth headphones button event detection in javascript.