Strange problem with phone and headphones

[Amuscaria]

So I'm running into a strange phenomenon recently, I got a new pair of headphones (pretty cheap ones) and put them on my Galaxy S5 mini phone. They are simple headphones that you just put inside your ear. Whenever I wrap the headphone cords around my phone to place into my pocket, the phone starts to heat up like crazy, until it simply shuts down from overheating. I don't really know why this is happening. Some sort for induction heating from the coiling? This never happened with my old headphones. Ideas?

[Minigunner]

Possibly induction heating. Even then, I'd personally advise against coiling any kind of wiring with electricity going through them around such a sensitive device.

[DoomRater]

Do the earbuds have a built in microphone? I wonder if the mic to ground isn't activating...