I've been using these earphones for almost a year in my wirelles t.bone in ear monitor system. They fit in perfectly, almost no chance to fall out, and also after 6 hours of using them on stage, my ears don't hurt me due to their good ergonomic shape. Noise canceling is very good, sound is ok, there could be a bit more bass, but for monitoring purpouses it is just fine. Even like the plastic case to put them after the usage. Deffinetly worth the price, especially if you buy them in a bundle along the small case to store them.