【Product Description】 Yamaha Silent Brass System SB7-9 (for trumpet/cornet). This is a popular model that allows you to practice with a natural playing feel while silencing the sound. 【Condition】 Both the main unit and the pickup mute are in relatively clean condition with no noticeable scratches. There are minor scratches and scuffs from use, but overall, it is in good condition. The cables and strap are also in clean condition. 【Set Contents】 Silent Brass main unit (ST9) Pickup mute (PM7) Earphones Connection cable Strap Instruction manual Outer box *Everything shown in the photos is included (9V battery not included). 【Shipping Method】 We will carefully pack it with cushioning material and ship it. 【Features】 - Allows for comfortable practice at night or in apartments with a natural playing feel. - Compact and convenient for carrying around. - Equipped with an AUX IN terminal for practicing along with music. ⚠️ Notes ・There is some wear and tear due to it being a used item. ・Please prepare batteries separately (1 x 9V battery). ・Please refrain from purchasing if you are sensitive to minor imperfections.