remarkably light, side independent (left can be right and vice versa, and once you take them out of the box, it resets the earbud put in the left socket as the main earbud), they sound great. Great bass extension while keeping great clarity. No buzzing sounds from bluetooth. Compared to quality wired iem, they sound just as good. The transparency/ANC modes while "available in the voice menu" do not work but who cares? Cherry on top, a beautiful case