This is the ZCAT Pedals Poly-Octaver2. This is a combined reverb/octaver up/down/chorus effects pedal made by ZCAT, a pedal maker from Latvia, known for its majestic and transparent spatial effects. A major feature is the ability to adjust organ and shimmer sounds to your liking while maintaining the original sound. The polyphonic octaver can be used even after a distortion effect, creating a sound image that cannot be achieved with volume or EQ alone. I personally recommend placing another reverb pedal after it to layer the sounds, allowing you to enjoy a deeper ambient sound. In addition, each effect functions independently, so you can come up with various uses, such as a chorus with added octaves or a modulation reverb. It's also useful when you want to add a little flavor in an environment where you don't use many effects pedals. I purchased it new a few years ago. Since then, it has only been used indoors, and I haven't applied Velcro to the back. The contents are: Main unit Box Attached paperwork Please check the condition from the images. I have also confirmed that it works. I am selling it to raise funds, so I will not accept price negotiations. Immediate purchase is OK. Even if there are questions, the person who completes the purchase procedure first will be given priority. Please understand that this item is stored by an amateur, and I ask for no claims and no returns.