The Yamaha Silent Brass is a silent system for euphoniums, perfect for practice. I bought it used, but due to financial hardship, I had to sell my instrument, so it's become useless to me. I'd like to pass it on to someone who can make use of it. - Brand: Yamaha - Model Name: Silent Brass - Accessories: Instruction manual, connection cable, strap, case - Color: Black Thank you for looking.