Belcat Prener-LC Acoustic Guitar Preamp System

Input Impedance: 10 M
Frequency Response: 20 Hz - 20K Hz
EQ: 4-band
Bass: +/- 12 db
Mid: +/- 12 db
Treb: +/- 12 db
Pres: +/- 12 db
Tuner: Auto/Manual 
Tuning Note: Chromatic Mode / Guitar Mode
Power Supply: 9v battery
Features: Balance & Unbalance Output Jack
Dimension: 98 mm (length) x 58 mm (width)