I am selling this item because I purchased a replacement. This is a used item, so please refrain from claims other than for operational defects. There are no operational issues. I will also include a non-genuine AC adapter. ⚠️Attention⚠️ Please note that the reverb knob has been replaced with a non-genuine one. Multi-functional acoustic guitar processor, equipped with effects and reverb. - Model Name: AB-8 - Type: Acoustic Guitar Processor - Functions: Effects, Reverb, Equalizer - Connection Terminals: Input, Output, XLR terminal - Operation Switches: Memory, Feedback, Power On/Off Thank you for viewing.