An effects pedal that allows for sound quality adjustment with a 10-band equalizer. - Brand: MXR - Model Name: ten band eq - Function: 10-band equalizer - Controls: Output, Power, Gain - Frequency Bands: 31.25Hz, 62.5Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz, 16kHz One owner Non-smoking, no direct sunlight, no pets No Velcro, no use with shoes, no outdoor use Thank you for viewing.