The TrumCor 45T Tunable French Horn Straight Mute offers the same shape and feel similar to a Rittich-style mute. This mute retains the warm sound associated a TrumCor mute. The TrumCor 45T Tunable French Horn Straight Mute has an adjustable chimney so the mute can be tuned for optimum performance. TrumCor Mutes are carefully crafted from selected grades of materials. Each mute is designed to produce a muted tone that is in tune, vibrant, warm and responsive. TrumCor Mutes blend well with other instruments and preserve the unique sound quality of each instrument in all registers and at all dynamics.