Surfing 3 Band EQ Guitar Preamp Equalizer Piezo For Ovation Oud Acoustic Guitar EQ505R
Bass Control: ¡€12dB at 600Hz Middle Control: ¡€12dB at 600Hz Treble Control: ¡€12dB at 2.2KHz Input Impedance: 10M¦˜ Frequency Response: 20Hz - 20KHz Dimension:95mmx42mm Package not include battery