Unrelated to the actual topic but... Knots occur in headphone cables because of how people wrap or store them. If you take each end of the cable and fold it in

Unrelated to the actual topic but... Knots occur in headphone cables because of how people wrap or store them. If you take each end of the cable and fold it in half a few times (I do it 3 times) then you're far less likely to get any tangles than if you wrap them around your fingers in a continuous loop.