Rowin LEF-317B Bass EQ Pedal 5 Band Equalizer Pedals For Bass Guitar With 5 Band Graphic Mini Size True Bypass5-Band Graphic EQ: With master level control,18db adjustable gain range per band.Frequency Centers: 62.5hz, 125hz, 500hz, 1khz, 4khz, meet common frequency band requirementsClear Sound: No noise. Volume knob for flexible volume adjustment.Easy Carry: This Equalizer pedal has a small size body, light weight,suitable for out side gigs,powered by a DC 9V adapter (not included inthis package)Solid Quality: True bypass provide transparent tone, durable andsturdy. If you receive an unsatisfactory product, please contact us for asolution.Product descriptionColor: Bass EQROWIN is a professional manufacturer of guitar pedal effects. If you receive an unsatisfactory product, please contact us for a solution.BASS-EQSmallest Bass graphic equalizer pedal in the world5-Band Graphic EQ with master level controlFrequency Centers: 62.5Hz, 125Hz, 500Hz, 1kHz, 4kHz18dB adjustable gain range per bandZInc Alloy metal shell Very small and exquisiteTrue bypassSpecifications:Specifications:Brand: RowinModel: Bass EQColor: Sliver Material: Zinc Alloy Input: 1/4 monaural jack (impedance: 1M Ohms) Output: 1/4 monaural jack (impedance: 10k Ohms)Power Supply: AC adapter 9V DC (Adapter not included)Item Size: 9.5*3.8*5.2cm / 3.7*1.5* 2inItem Weight: 248g / 8.8ozPackaging:1X Bass EQ Pedal1X User Manual1X Packing Box Precautions:The power adapter is not included.Do not use the pedal in high temperature, high humidity, or subzero environments.Do not use the pedal in the direct sunlight.Please do not dissemble the pedal by yourself.