Though you have not given any price idea but if you need an ear phones with the most balanced sound the SHURE SE215 is the answer
Sound of the Shure Se215: WOW,EXCELLENT, Awesome . Even the weakest background sounds are also crystal clear . Very well Balanced along with the perfect bass , not artificially amp’d to give you the impression of the Thumpy bass causing headache. earphones curtails out most of the outside noise.
Comfort: The Expandable rubber foam is very comfortable and also seals the ear nicely . The headphone cord comes forward then loops over and behind the ear
Pros:
(i)The finest Sound Quality You Can Expect from a earphone.
(ii)Noise Isolation does not Permits single decibel of sound
(iii)Comfort of using make this worthy of use for prolong time.
Cons:
(i) Absolute Sound Isolation my be not Suitable for running outside
(ii) May not be suitable for all type ear canal
source:
shure-se215/