I'll do my best to discount the price if you purchase it at the same time as Tp. ----- This is a Yamaha Silent Brass for trumpet and cornet. It's the model before the current "SB7J". By attaching the pickup mute to the bell, you can reduce the playing volume to the point where you can practice at home even at night. By connecting the pickup mute and the personal studio, you can listen to the sound of your playing through headphones. ▽Set Contents ・Pickup Mute (PM7X) ・Personal Studio (STX) ・Connection Cable (PM7X-STX) ・Earphones Batteries (2 AA batteries) are not included. The earphones have only been cleaned, and their operation has not been confirmed. The manual is missing, but you should be able to use it intuitively unless you are particularly unfamiliar with this type of item. Also, you can find a PDF download site by searching for "SB7X Instruction Manual". #SwinGTrumpet #SwinGTrumpetIncluded -- *Please read the profile before commenting. *Please follow the rules when quoting. *This item is for sale on Mercari.