Multi-functional effector with adjustable sound quality, featuring an audio interactive dynamics processor. - Model Name: AUTOCOM PRO-XL - Brand: behringer - Function: Audio Interactive Dynamics Processor - Connectors: XLR input/output, TRS input/output - Controls: Volume adjustment via various knobs - Power: AC power. Instruction manual included. All items shown in the images are included. Power-on confirmed. Based on my personal experience, I used it for vocal recording with natural compression. I think it has few quirks and is easy to use. Thank you for viewing.