I purchased the Harmon Wah Wah Mute for my youngest son for Christmas. He has only been playing trumpet for six months and is progressing at a very rapid rate. He suggested this particular mute, due to he fact that it's identical to the Harmon Mute that he uses in his school band. He was very happy to receive this as a Christmas gift. We all get to enjoy hearing the theme music from The Pink Panther at any given moment! Sam Ash Music... Great Selection... Competitive Pricing... Superior Customer Service!