Cherub Acoustic Guitar Preamp GS-4

GS-4 Acoustic Guitar Preamp Cherub GS-4 is a small form factor onboard preamp for acoustic guitars. It features an HD color display that ensures you a clear tuning visual under any light condition. This system can run up to 36 hours with only just two pieces of CR2032 battery.   PARAMETERS: Features: 3 band EQ / chromatic tuner Input impedance: 10MΩ Frequency Response: 20Hz-20kHz Control Range: Bass ±12dB at 100Hz / Middle ±12dB at 800Hz / Treble ±12dB at 4kHz Pick-up: piezo ceramic pick-up Output jack: 6.35mm Low battery check LED Battery life: over 36 hours Power supply: 2 x cr2032 Dimensions: 64mm(L) x 37mm(W)