Andoer Acoustic Guitar Preamp Piezo Pickup 3-Band EQ Equalizer LCD Tuner G-Tone GT-6

Acoustic Guitar Preamp GT-5 3-Band EQ with Tuner and Reverb and Chorus Effects. Specifications:
Features: 3 Band EQ/ Chromatic tuner/Phase/Reverb & Chrous effects
Input Impedance: 10M
Frequency Response: 20Hz?0KHz
Control Range: Low: +/-12dB at 100Hz ????Middle: +/-12dB at 800Hz ????High: +/-12dB at 3KHz
Low Battery Check: LED
Battery Life: over 20hours ??  
Power Supply: 9V Alkaline Battery(not included)
Pick-up: Piezo ceramic pick-up
Output Jack: 6.35mm
Dimension: 5.2 * 5.4cm / 2.05 * 2.13in (W * L)
Item Weight: 108g / 3.81oz
Package Size: 15.2 * 8.2 * 4.3cm / 5.99 * 3.23 * 1.69in (L * W * H)
Package Weight: 231g / 8.15oz

Package List:
1 * 3-Band EQ Equalizer
1 * Battery box
1 * Piezo pickup line
2 * Cut-out template
8 * Mounting screws
1 * User Manual (English ; Chinese)