The Cresyn C750E represent a good compromise between sound quality and cost. The bass and midrange is right where it needs to be in order to give a good listening experience, however, sibilant it might be. During use the earphones are comfortable enough to wear over an extended period of time and the shirt clip reduces microphonic noise nicely. When it comes to high frequency performance do not expect a lot from these in-ears as they sound more crude than other mid-end in-ears available for about the same price. The Cresyn C750Es are by no means the new contender for best all-around in-ear or anything of the sort, but an honest solid performing set of in-ears that do not bust your budget.