Cherub GS-3 Acoustic 4-Band EQ Equalizer Guitar Preamp Piezo Amplifier with Tuner and Phase Function LCD Display

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Features: Designed for acoustic guitar, it helps to modify and perfect sound. With phase and tuner function, make performance easier. 4-band equalizer, push the BASS/MIDD/TRES/PRES to adjust frequency. Rotating the VOL. knob to change volume. Clear LCD display, with battery check light, BATT. lights remind you to replace the battery. Mini size, convenient for installing. Comes with pickup line, mounting screws, cut-out template. Powered by a 9V alkaline battery (not included). High sensitivity and great performance, it is best choice for your guitar.