I have been using the Shure SE115 sound isolating earphones in my live band and at the gym for about 3 years now. They have been great headphones and I’ve really loved them. I finally wore through the cord where it passes over my ears and it’s impossible to only replace the cord in that area on the SE115’s. So I decided to purchase the new Shure SE215 sound isolating earphones which have replaced the SE115 product. I was so happy with the SE115’s that I felt confident that the SE215’s could easily replace them.