Acoustic Guitar Passive Tone and Volume Control EQ Equalizer Preamp Amplifier Piezo Pickup Tuner with 6.35MM Plug

Features: This equalizer helps to do passive tone and volume control of your guitar. You can spend less time tweaking controls and more time playing. No need of battery. 1 pick to amplify the sound. 1 small sticky plate helps to fix the power leads. 2 mounting screws connect the guitar firmly. The wire plug is 6.35mm. Discounted at only: US$ 4.69