Yamaha

You want to play when and as you like, without being confined to time or place Yamaha's next generation SILENT Brass™ makes it happen. The SILENT Brass™ consists of a smaller, lighter, freer blowing Pickup Mute™, and the Personal Studio™, which features Yamahas exclusive Brass Resonance Modeling™. Used together, the two deliver the natural acoustic tone you hear when playing without a mute, making it feel as though you are playing mute free.

Features

Easy to attach and remove - The mutes are designed to attach and remove smoothly and easily.
Fits neatly inside the bell - A new compact design now lets you put your instrument in its case with the mute in the bell.
So light you'll forget it's in your horn - These mutes offer better instrument balance when in the bell and greatly reduce stress when playing.
Specially designed mini microphone - The microphone performance, it's mounting position, and the surrounding mute design were all optimized to bring out the full potential of Brass Resonance Modeling
Brass Resonance Modeling™ Ver.2.0 - Brass Resonance Modeling™ is original Yamaha technology that effectively cancels the characteristic closed sound of a mute, reproducing the open, natural sound of the unmuted instrument. This reduces stress on players by allowing them to practice and play freely without feeling restricted by the mute.

Specifications

Pickup Mute
Internal microphone: Electric condenser microphone
Pickup output jack: Mini phone jack
Nominal level: -25 db to 35 db
Brass Resonance Modeling™: Ver 2.0

Personal Studio
Model: STJ
Jacks and terminals: Mute in, Aux in, phones, micro-USB
Control: Volume, reverb type, reverb depth, sound, power on/off
Brass Resonance Modeling™: Ver 2.0 (It behaves correctly only when compatible Pickup Mute™ is connected to Personal Studio™)
Power Supply: AA alkaline or nickel-metal hydride batteries x2 (3V DC)