Thank you for viewing. I acquired this item as a used product several years ago. During operation check, the sound with the effect ON was strange (low volume, battery-dead fuzz-like sound), so I repaired it by cleaning the vacuum tube socket and re-soldering, and it started working normally. However, since the same symptoms may reappear, I am selling it as junk. Also, the adapter was slightly damaged due to plastic deterioration (see photo). I think it can be repaired with instant glue. The box also comes with it, but it's tattered. When I purchased it, Velcro was attached to the back. The vacuum tube has been replaced with an Electro-Harmonix 12AX7. Search terms Guitar effect pedal equipped with a vacuum tube overdrive function - Brand: BEHRINGER - Model: VT999 - Function: Vacuum tube overdrive - Controls: Gain, Drive, Treble, Mid, Bass, Master - Accessories: AC adapter *Damaged