I purchased this for practice at home two years ago, but I've decided to sell it to declutter, as I've found that a regular mute is sufficient for my needs. It was only used at home, so there are no major scratches, but there is a small paint chip on the center of the main unit. ~Contents~ ■ Mute body with pickup ■ Control unit for volume adjustment, etc. ■ Earphone/external audio source connection cable ■ Manual and other documents ■ Outer box (Everything is shown in the first photo.) ~Condition~ There are no major scratches, but there is a small paint chip on the center of the main unit. Please check the photos. ~Pickup Mute PM2X Details~ ■ Brass Resonance Modeling compatible ■ For Euphonium ■ Pickup terminal: Mini phone jack ■ Built-in microphone: Electret condenser microphone ■ Muting level: -25dB～-35dB ■ Size: 210 × 395mm ■ Weight: 750g ※ Detailed specifications may differ from the images. ~Personal Studio STX-2 Details~ ■ Effects: Reverb (Rev1/Rev2) ■ Input terminals: MUTE IN AUX-IN = Mini stereo jack PHONES (Headphones/Earphones) = Mini stereo jack ■ Controls: Volume Power switch (OFF/ON) Rev1/Rev2 (Reverb) ■ Power supply: 2 AA batteries (alkaline or nickel-metal hydride batteries: sold separately) Continuous use for approximately 12 hours with manganese batteries ■ External dimensions: 70 × 20 × 98mm ■ Weight: 71g (excluding batteries) Type... Euphonium Thank you for your consideration. ✱ I've finished packing, which was quite a task. Ready to ship anytime.