The Yamaha Personal Studio STJ transforms the single Silent Brass mute into a true rehearsal experience. The revolutionary STJ Silent Brass System provides the instrumentalist with an unadulterated sound experience thanks to Brass Resonance Modeling and an integrated headphone input. The sound is significantly less noisy than its predecessor, furthermore the sound is open and natural. Suitable for all current Yamaha Silent Brass mutes of the STJ series.

• Size: 70.2 x 30 x 121.3mm
• Weight: 112g (without batteries)
  

Not included: 2x AA alkaline batteries