I like the touch function for voice cancelling. but I always use earphone inside the helmet. and sometimes I'm on the phone. it's much simpler to tap the screen rather than taking my hand up to my head to change to ambient mode. widget is a good idea to add on. also make the app more simpler. no need to select what earphone to use since majority of people only purchased one earphone.
1) make a widget
2) make app more simpler. no need to select earphone everytime . example nothing ear GUI