Moosic Straight Mute for Horn	Ion Balu Straight Mute for Horn	Ion Balu Practice Mute for Horn	Best Brass The Warm-Up mute, in brushed aluminum, next to the Non-Transposing stop mute, in black.

General information about horn mutes

Horn mutes come in several basic types, although there are variations on the themes.

• Straight mute - The most basic kind of mute.  It is usually conical in shape or may have a cone with a cylinder.  While the cone is of various types of material, the wide bottom is very often hardwood.  This bottom portion is what we refer to as the "sound board".  Straight mutes may be tunable, and often have a wrist strap.  The player hangs the mute on the right hand wrist until the mute is needed or after it has been used. 
• Transposing stop mute - Makes a muted sound very much the same in timbre and intensity as playing the horn hand stopped.  This mute alters the length of the vibrating air column, and requires the player to transpose, as one does when playing stopped.
• Non-transposing stop mute - Much the same as a transposing stop mute, but designed to allow playing stopped passages without transposing.
• Practice mute - A mute that muffles the sound of the horn so that a player may practice without disturbing others nearby.  Rarely allows the player to hear the horn unaffected or to play with normal pressure and attack, so the player is advised to allow sufficient practice time without the mute.