Available in carbon black and colourful purple, the zst is hard to miss. These earphones come with the best "memory" cable for the over the ear part I have tried so far. I have written about the ate-s as well which was supposed to have a malleable sleeve at the over ear section of the cable but I find that the one on the zst is far easier to form into a comfortable shape for your ear. In comparison the one on the ate-s is stiff. I'm a fan of the see-through plastic often used used in the kz housings which let you see inside. Once you've got the 2 pin cable plugged in you can listen to the zst. People complain that these cables are sometimes loose but these ones were difficult to get in and so far have been difficult to get out. The earphones have a dynamic driver and balanced armature in each unit. I haven't used hybrid earphones before so I can't compare it to others in this category but I'm satisfied with the sound I get from them.