【Operation Confirmed】Silent Brass Trombone SB5-9 YAMAHA

This is a YAMAHA Silent Brass system for trombone.

I used it a few years ago.
Everything is included except for the earphones.
The batteries have been replaced with new ones, and I'm including 3 unused batteries.

- Brand: YAMAHA
- Model Name: Silent Brass System SB5-9

I plan to dispose of it in two weeks, so I'm offering it at a low price.

I look forward to your comments.