Although these looked just like the headphone that shipped with my HTC Sensation it was immediately noticeable that the wires were thinner and had a different less rubbery covering than the originals.
The sound quality was dreadful.
I bought two of these due to the low price and the original HTC lable.
The first set failed within a week and the second fared somewhat better with one earbud going within a first week of useage and the other earbud failing after 3 weeks.
I tended to use the headphones for a max of an hour a day, hardly a "power user"
I've never been compelled to write a review before for a product purchased from Amazon, even for substandard kit, but the truely dreadful quality of these phones has to be experienced to be believed.
yes, they're only £2.50, but in theses current times some of us find even that amount difficult to waste.