Acoustic Guitar Bass Treble Tone and Volume Control EQ Equalizer Preamp Piezo Pickup Tuner Amplifier with Active Line 6.35MM Plug

Features:
This equalizer preamp helps to adjust the tone and volume of your guitar.
You can spend less time tweaking controls and more time playing.
You can control bass, treble and volume.
Low battery signal, the low batt will light when it is in low power condition.
1 pick to amplify the sound.
1 small sticky plate helps to fix the power leads.
4 mounting screws connect the guitar firmly.
Connecting wire with 6.35mm plug.
Powered by 9V Alkaline battery (not included).