Fast delivery. For me, they look like more expensive headphones. Very nice sound, i can compare it to samsung akg headphones but with slightly inflated midrange. The bass and treble are almost the same as the samsung akg headphones (the bass is deep and the treble is clear and crisp). During the call, I can hear well, but the other side understands me hard. I recommend headphones for listening to music, but they are not the best for talking.