Yamaha Silent Brass STX2 and Pickup Mute PM1X. I purchased these for tuba practice, but I haven't used them much. In my personal opinion, these are excellent products. Purchased in January 2023. They are in beautiful condition with no scratches or stains, but they were stored in a place where a smoker lives. I have cleaned them before listing, but if you are sensitive to smells, please refrain from purchasing. All included accessories are shown in the photos. All original accessories, such as the instruction manual and strap, are included. Thank you for looking. Tuba Silent Brass Pickup Mute YAMAHA STX2 PM1X Yamaha Brass Instrument Yamaha's Silent Brass is a mute system that allows for quiet practice and can be easily connected with the included cable. - Brand: Yamaha - Model Name: Silent Brass - Accessories: 2 cables, complete instruction manual - Color: Black - Type: Mute System Thank you for looking.