I'm interested in getting a nice pair of IEM to use as a headset also for my Galaxy S5.  Budget is somewhat flexible; I'd love to spend under $100 but if there's a $400 pair that is transcendental I'm open to it.  My musical tastes are very eclectic and run from EDM to classic rock to jam band...

I'd like to get my 8 year old a pair of over the ear headphones for his birthday. He saw the Monster, I think beats, headphones in a commercial and got all excited for them...