This product is no longer on the market !!!!!   The following two paragraphs have been reprinted from the original online advertisement and do not reflect my opinion of the product in any way. _____________________________ “The NPS, No Pressing System, is an application that controls the pressure of your lips on the horn. It is a tube that is hooked on and replaces the original main pump (lead pipe) on the trumpet. The use of this system helps you find a better intonation and a better sound by adjusting the way you blow into the trumpet. The No Pressing System…