These headphones-ear, in terms rendering are the best I've experienced, well above the a-Jays or PL-30, the sound is faithful, bass response and accurate without invasive beings as they could the being in Monster beats, the mids and highs are present. The bad thing is that costs its 5th star to this, the bundle is too light, a huge transport box made of aluminum and 3 pairs of tips, which is very light compared to a-Jays three ... Also although they are referenced for "ipod ipad iphone" they do not have the micro remote control for this option head to the S4i.