To reiterate what others have been saying this pair of earphones: The overall sound quality is astounding, the soundstage and separation is phenomenal, the build quality and packaging is world class. It even has a integrated mic and volume controls to supplement your phone!    I liked them SO much I have 3 pairs of them as backups just in case Xiaomi discontinues them. It is THAT good.    Just like any in-ears YMMV with the sound isolation and tip comfort, but this is a USD $20 piece of equipment to cry out loud. You simply cannot go wrong unless...

Like many others, I was very skeptical about the Swans M10 2.1. How can something that retails for only around US$60 in China get such rave reviews in the Internet audio circles? So I bought one to check it out, after all it was only US$80 from where I live.   Sure, it has wooden enclosures unlike the downright nasty plastic used by at this price range, but it still looks kinda cheap to me. The satellites themselves barely weighs enough to qualify as a paperweight, and the 3-inch woofer suggests the low-midrange is gonna suck...hard. The powered...