Lohb
Headphoneus Supremus
Does it come with a very bad one? You can get a good wire for around a dollar from China, may cost a bit more depending on where you live.But any electronics store should have them.
I'm looking for the higher quality stuff. At the price H10 is at there are quite a few mods and upgrades that look good 3M EMI shielding/opamp rolling....regarding power cords - I'd like to see for myself if stock generic cabling vs audiophile power cords are hype. The only way is try yourself and if nothing can be discerned then no big loss....