Similar to their very popular practice mute, Best Brass also has released a version with electronics. All of the controls are self-contained within the mute and it is still very, very light!
From the manufacturer:
Anywhere at any time!
e-Brass reduces instrument output to a whisper, lowering volume approximately -30dB to -35dB. With its amazing quietness, you don't have to worry about disturbing the neighbors and also can enjoy playing the instrument without feeling self-conscious about other people listening. Using the e-Brass is just like playing in a completely portable and personal studio where nobody can bother you.(*)
* Even so, please be conscious of your circumstances...
An evolving mute design for over 15 years.
Besides perfect pitch and less back pressure in all registers, e-Brass achieves a very natural air flow like an open instrument. These leading features were created by carrying out a through investigation of the ideal acoustical design of something we call the total “Instrument”, comprising a horn, a mouthpiece, and finally the mute.
This original design approach allows the e-Brass’ to be a part of the instrument and also allows for the instrument to resonate naturally while competing practice/silent mutes just kill the sound. Further, as the instrument is still resonating with the mute, the headphones allow the listener a more pure sound without any unnecessary electronic controls.
The special built-in structure makes it so simple.
One of the big differences between e-Brass and other general e-mutes is that the electronic circuit is set inside the mute. With this built-in structure, e-Brass has much less of a hassle in the preparation and only needs headphones to play. But, despite this, e-Brass is made up to 40% lighter than other e-mutes. In fact, even e-Brass Horn weighs less than most smart phones, so you won't feel like the bell is being weighed down or worried about dropping the mute. With this incredible lightness, e-Brass enables enough stamina for focused practice or ease in any performance situation.