YAMAHA Silent Brass System Silent BRASS Pickup Mute for Trombone Personal Studio ST5 [The set includes everything in the images] ・Personal Studio ST5 ・Pickup Mute PM5 ・Dedicated connection cable ・Stereo standard conversion plug (one purchased additionally) [Product Details] Used a few times, but has been stored in a dark place since then. Selling due to house clearance. Operation has been confirmed. AC adapter, outer box, and instruction manual are not included. Please check the mute tip for scratches and dirt (see photo 5). The item has been wiped clean with a disinfectant sheet before listing, but it is not perfect, so we would appreciate it if those who understand that this is a used item would purchase it. No separate sales. The URL of the webpage for the instruction manual is listed below. https://jp.yamaha.com/files/download/other_assets/9/316369/ST5_V833620_JA.pdf Thank you. Price reduction not possible. Type...Trombone Brand...YAMAHA