Best Brass Warm-up Mute for TrumpetThis Best Brass Trumpet Mute provides top tier noise reduction, without sacrificing intonation or size. A favourite amongst professionals, this mute is used in preparation for performances of all levels. The Warm up mute reduces noise levels from around 25dB to 35dB, meaning trumpeters can practice in a hotel room confidently and without inhibition. This mute also provides superior intonation and reduced back pressure when compared to other trumpet