The YAMAHA Silent Brass STJ is a silent mute for trumpets, perfect for practice. - Brand: YAMAHA - Model Name: Silent Brass STJ - Included Items: Pickup Mute, Instruction Manual - Color: Black - Manufacturer: YAMAHA CORPORATION Includes accessories and a sales certificate sticker. Used only a few times and is like new, but please understand that it is a used item. Box and batteries are not included.