[fluxxy]

These headphones are the standard issue Apple headphones but we could release a higher quality headphone with the same magnetic cord. As for the weight, the magnets are so small they make it only slightly heavier, about the weight of a quarter. From our testing there is not much difference. The magnets secure the split cable under your chin so they stay in place while running.

[jessriedel]

How much does the just the headphone cord weigh (i.e. without the ear buds or the jack)? I would guess it's less than a quarter, so that you're more than doubling the cord weight, but I don't know. It's the proportional change in cord weight which is important.