This is a 7-band graphic equalizer, allowing for sound quality adjustment. - Model Name: EQ700 - Brand: behringer - Color: Yellow - Function: Graphic Equalizer - Input/Output Terminals: Input, Output - Number of Sliders: 7 Thank you for viewing. There is some crackling when adjusting the knobs, but it doesn't affect use. Body only. If you're looking for an inexpensive equalizer, please consider this!!(´д｀)