Feature: 1. OVERALL ADJUSTMENT: 5 band graphic EQ with overall gain adjustment, frequency points including 62.5Hz, 125Hz, 500Hz, 1kHz, 4kHz 2. ±18DB GAIN RANGE: ±18dB adjustable gain range, 9V DC transformer(inside negative and outside positive) power supply, working current for 5mA 3. COMPACT AND EXQUISITE APPEARANCE: Made of all metal shell, have small and exquisite appearance, useful and practical for equalization 4. EXCELLENT IMPEDANCE PERFORMANCE: Input impedance is 470k Ohms, output impedance is 1k Ohms, this effect pedal come with excellent performance 5. GOOD METAL MATERIAL: 5 band EQ equalizer effect use excellent metal material, easy to conduct electricity, shiny, sturdy and durable Specification: Item Type: Bass 5 Band Equalizer Pedal Material: Metal Colour: Silver Frequency: 62.5Hz, 125Hz, 500Hz, 1kHz, 4kHz Input: 1/4in Mono audio jack (470K Ohms impedance) Output: 1/4in Mono audio jack (1k Ohms impedance) Power Supply: 9V DC transformer (inside negative and outside positive) Working Current: 5 mA. Package List: 1 x Effects1 x Sticker1 x User Manual