- Perfect intonation
  By stopping the horn bell by hand or with a stopping mute the tone rises a half tone, but often these notes
  are out of tune (sharp). Correcting this problem requires embouchure adjustments that can threaten
  security. The Powerstopf provides you with secure intonation.

- Reproduces hand stopping sound
  Working with a stopping mute often results in a brassy tone. The combination of aluminum for direct
  sound, and an oak "bell" for general color, results in a hand stopped-like sound.

- Balanced resistance
  Resistance is a feature well known by horn players. hand stopping increases resistance, and sometimes
  influences the pitch and self-confidence, as well. The Powerstopf is well balanced in all registers.

- Comfortable grip
  The Powerstopf is designed to be handled easily and make for quick changes to open playing