1pkg Martin Acoustic Guitar 4 Band Preamp Eq Piezo Pickup Tuner Et4(no Battery)
Condition: NewEQ: 4-bandBass: +/- 12 dbMid: +/- 12 dbTreb: +/- 12 dbPres: +/- 12 dbTuner Function: Power/Note/PitchTuner: Auto/Manual (7B, 6E, 5A, 4D, 3G, 2B, 1E)Pitch: 433~447 HzPower Supply: 9v batteryDimension of the Cutout for Installation: : 84 mm (length) x 52 mm (width)Package Including: Active Preamp/EQ/Tuner, Output Wiring Harness, Piezo Pickup, Mounting Screw(no Battery)Part No.: ET-4We manufacture all kinds of instrument parts and conduct The direct model so that our price is very low with high quality