Sony MDR-EX300/BLK Vertical In-the-Ear Style EX Style Headphones (Black)

Not much more to say, for a pair of earphones that came along with my Sony Xperia phone they're great. Heck, more than great even.

These came free with my phone, and they are probably the best pair of headphones that ever came with a phone.
 
The general feel is that these are just very decent headphones for a wide range of music genre. You won't be disappointed but it won't be enough for any audiophiles.

Not an audiophile. These are probably the best earbuds i owned (i dont have experience with hq headphones). For price, I think these are one of the best buds available (for sound) (i never listened to soundmagic e10). 
Sound: Sound is warm, full, loud enough, bass has great depth and clarity, big soundstage (for price), the instruments sound detailed and realistic (for price), highs are sweet (some says "lacking", i say sweet).
Build: The cable is poor, flimsy, they need very good care, use the case they come with. The case is very good though. The buds are well made though.
Comfort: Very comfortable, they're so light that you seem to forget that you're wearing them.
Looks: Premium.
Isolation: Not good, they're a bit "airy", don't get that "suction" feeling. Got to turn up the volume for isolation. But if you're at home, no isolation needed of course.