Semi hi-end in-ear headphones from Japanese brand final audio. Durable minimalist design with stainless steel, relatively thin, flexible cable that doesn't tangle easily, plus 4 different pairs of ear pads, 2 elastic supports to wear around the ear, and a wannabe leather carrying pouch. The only concern I have for long-term use is that they don't have elastic support at the connection to the headphones. They are quite well-finished, though. As for the sound: they are not intended for bassheads. The bass is tight, precise, and clean... To hear songs like T-Pain's "Up Down" or Future's "Mask Off" as they should be, I plugged them into the headphone jack of my computer with 70-80% volume (using an Asus Xonar DGX sound card). On a smartphone, they won't produce RnB-type bass unless it has amplification. As for the high and mid frequencies, they are very powerful. Detail, accuracy, and liveliness. They don't scream or muddle the frequencies no matter how much I push them (within reason, of course). Their soundstage is satisfactory considering their size. They have a relatively colored sound, not completely flat. I would prefer if they could increase their volume faster. I've been using them for almost a week without any issues from morning until night... Mobile, computer, mp3 player. For 70 euros, I highly recommend these headphones based on what I hear.