If you long press this button for about 2 seconds, it puts the PX7 into ambient aware mode. Anyway I believe this would work great for EITHER use! They work, so they will not be returned. So I was able to cancel my replacement order. Traditional Birkenstock comfort with a new fashionable look. I plan on buying another pair. Very little assembly that I can see. And it wouldnt make you look smooth. So, they must have tore when trying to reposition them in my ear. Sometimes we take the world around us for granted, looking at the reviews, the biggest complaint is that you can buy this in store for alot cheaper.