Faxx Trumpet Mouthpieces 7C Trumpet Mouthpieces 7C The Faxx mouthpieces were developed as facsimiles of the more common designs at more economical prices Only the most popular sizes have been reproduced to guarantee the lowest prices possible for these quality mouthpieces The Faxx mouthpieces were developed as facsimiles of the more common designs at more economical prices Only the most popular sizes have been reproduced to guarantee the lowest prices possible for these quality mouthpieces