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

Features: GS-3 is an acoustic guitar onboard preamp that has 4 band EQ, Phase Reversal and a built-in chromatic tuner with high definition LCD display. It has Low Battery alert to remind you to change new batteries. GS-3 is easy to be installed into a guitar and its size is only 55mm*92mm*33mm. Specification: 4 Band EQ with Phase and LCD Chromatic Tuner Input impedance: 10M Frequency Response: 20Hz~20KHz Control Range: Bass: +/-12dB at 100Hz Middle: +/-12dB at 800Hz High: +/-12dB at 3KHz Presence: +/-12dB at 10KHz Low battery check LED Battery life: over 100hours Power supply: 9V Alkaline Battery Pick-up: Piezo ceramic pick-up Output Jack: 6.35mm Size: 55mm* 92mm* 33mm Package Included: 1 x Pickup