◼︎Free shipping - Fully functional, tested and working. ◼︎This is for trombone. ◼︎Since it was used only a few times, it is, in my subjective opinion, a beautiful item. ◼︎The sponge part is in good condition. ◼︎Compact and lightweight while maintaining sufficient muting performance!! ◼︎Equipped with new technology that reproduces the sound of a real instrument!! ◼︎Achieves a comfortable resonance like playing in a concert hall!! ◼︎Equipped with Brass Resonance Modeling™!! ◼︎Silent Brass dedicated personal studio!! (Brand) YAMAHA (Product) ①SILENT Brass "STX-2" ②FICKUP MUTE "PM5X" ③YAMAHA Earphones (Function) Silent Brass System (What you get) ①SILENT Brass ※Since it will delay arrival if batteries are included, we will ship it "without batteries". ② FICKUP MUTE (for Trb) ③YAMAHA genuine earphones ④Genuine cord to connect the personal studio and mute ⑤Instruction manual A total of 5 items will be provided. Although it appears to be in good condition, it is a used item, so please understand this before purchasing. Please check the photos and consider your purchase.