Vics 5 Band EQ Preamp Piezo C-MIC Mixer Acoustic Guitar Pickup built in Color LCD Chromatic Tuner 5 Band EQ Preamp for Acoustic Guitar Under the Saddle Piezo Pickup Recording the Sounds from Strings High Sensitive Microphone Pickup Sounds from the body surface of the Guitar Master Volume/Mixer/Notch control Feedback notch and phase control