I don't like a cable from my waist to my head phones, so I've got a 2 Gb wireless headphones MP3; it's class. Easy to get at controls (they're on the right ear piece) for when a customer comes out to talk to you; which I don't like to be honest.
They're a bit 'chunky', and I look like Micky Mouse (with slanty eyes), but I don't give a fat WRACs pump to be honest; they're a class bit of kit.