Near-mint condition Yamaha Silent Brass SB7 Mute for Trumpet with Limited Edition CD

A while ago, I decided I wanted to play the trumpet, which I've always admired. I bought an instrument and this practice mute so I could practice at night.
However, due to my busy work schedule and my tendency to be satisfied just by purchasing things, I ended up selling the trumpet in almost unused condition. I'm now listing this mute as I won't be using it either.
The outer box is in a condition commensurate with its age, but the contents have only been attached to the trumpet a few times for the mute part; the rest is unused.
The CD is also unopened.
I confirmed that the main unit powers on when the adapter is plugged in.
The accessories are all that are shown in the photos.

This is a YAMAHA Silent BRASS SB7 mute for trumpet. It comes with a limited edition CD.
The box shows signs of age, scratches, and dirt, but the contents are almost unused.
It's an ideal item for trumpet practice.

[Brand] YAMAHA
[Product Name] Silent BRASS SB7
[Accessories] Limited Edition CD (supervised by Allen Vizzutti / original songs, minus one)
[Product Condition] Box has some scratches and dirt

No pets or smokers in the household.

Thank you.