Boss EQ-200 Graphic Eq, studio-level stereo sound with 32-bit/96 kHz processing, 4 memory places, LED display, MIDI, USB, controls: 10 slide controls from 30Hz to 12,8kHz, Level, Channel, Memory, 2 footswitches, 2x 1/4 Input (A/Mono, B), 2x 1/4 Output (A/MOno,B) 1x 1/4 jack for external switches or expression pedal, power supply by 3x AA-size batteries or AC adapter (not included), current draw: 170 mA, Dimensions: (W) 4" x (D) 5,4" x (H ) 2,5", weight: 1,7 lbs