Best Brass - Warm Up Nano

An addition that can be inserted into any wah-wah mute.

Just insert ‘Warm-up nano’in your Ww(Cool Jazz style*), and it reduces instrument output to a whisper while maintaining the full tonal characteristics of your favorite mute. The pitch, intonation, how it speaks...etc. All of which are kept as it is, so you can always practice with a familiar feel.