915 Generation 4-Band EQ Equalizer Piezo for EQ-7545R Guitar Amplifier Tune

EQ 7545R pick-up equalizer system with 4 bands can be easily fitted into your acoustic guitar and it is essential to electrify and amplify their sound.
Under the saddle for acoustic guitar.
-wired for easy assembly.
4 bands plus volume control.
Supplied with a battery box, Low battery indicator. Connecting wire with 2.5mm plug included.
Presence Control: +/- 12dB at 8KHz
Bass Control: +/- 12dB at 600Hz
Middle Control: +/- 12dB at 600Hz
Treble Control: +/- 12dB at 2.2KHz
Frequency Response: 20Hz - 20KHz
Power: 9V alkaline battery (Not included)
Colour: color
Material: Plastic Package Contents:
1 * Guitar Only the above package content, other are not included.
Note: Light and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.