Hi, I have a mint condition Sennheiser HD25 Originals and even if I really like their sound, they've seen almost no use as I'm more and more into IEM's nowadays. They were used for no more than a few hours (10 hours at most) and they are in absolutely mint condition, as a new unit, with all the extras (pouch and extra set of pads) and product case. They're currently modded with a better quality dual entry HD600 cable and that may be included in the deal. The mod is fully reversible (it's just a cable swap and cup rotation) and the original cable is obviously included... I'd like to trade these for the Sennheiser EI8/IE8i IEM model, in comparable condition (mint/very good). Since there's lots of fake IE8/IE8i models around, I require some proof that they're genuine (receipt from an official Sennheiser retailer, or something like that). Each owner pays registered shipping of their part of the trade and only within Europe. Feel free to ask any questions! Thanks.