I have an old set of se215 I bought in 2015. I went a long stretch without using them and they still have the very original cable. The left side has a cut in that plastic where the ear hook bends and sometimes I would hear it cut in and out. The left bud was easier to pull out than the right and popped out sometimes. I didn't want to chance on oem cable. Maybe they improved it I don't know, but the microphonics on my original cable is the worst. Very cheap earphones with rubber cable transfered less noise so I tried something different. I didn't expect the new cable to be almost squishy soft. Many small wires instead of fewer bigger ones. I got the long one thinking to match the original. Well I don't know if I need that much length. It feels longer because of how floppy and soft it is. The length and softness can seem to make it a little more tangle prone than something a little shorter and not as soft. But anyways it has a sort of bad smell to me out if the package. It's not super strong but it's a weird smell. I wiped them down with damp paper towel but it may fade with time. The pre bent ear hooks are bent a bit too tight or aggressive for me so I used a hairdryer to widen the U shape. That helped a lot for comfort. So they are really comfortable and are a good match for my old se215. My old cable being so loud and it's condition is why I got a new one. I like the cable. I got more than enough length now. So much better to use with the new cable. I didn't realize this cable is even longer than the original when I bought it. So I was glad that they snapped on nicely and required a decent amount to pull the buds off for both sides. So it fixed my old loose cable and the microphonics completely. The red ring is easy to see and goes on the right bud with the red dot on it. How they sound? Well good. Exactly the same as my old cable. They don't change sound at all and neither do digital to analog converers. Since you don't bend these to form, that part of the cable should be much more reliable than the oem cable. So if your's is the same then this will be a nice upgrade just for that reason. It practically has none or as little as possible for microphonics. The slider holds in place. The length of where the cable splits is much shorter from there to the ends but that doesn't bother me at all. Supposedly the green coloration doesn't effect the old cable as you can see in pics. I guess it's true since I couldn't hear a sound difference between the new and old but it was cutting sometimes and just too noisy. One should not get a cable for the sound at all but for all the other reasons. Someone shouldn't expect it to change your sound or make it better or worse. It sounds exactly the same to me. It will be the same and that is great nothing wrong with that. I can recommend the cable, way better than my original in noise and flexibility and it's super soft and is a great match for 215 IEMS. It's also more comfortable because of just resting lightly on your ears and being soft with very little noise. That's especially true since I reshaped them with the hair dryer. Looks much better too to me.