Feature 1: Built-in tuner (mutes output signal when in use) Feature 2: 2 color display Feature 3: Seamless, separate volume control Feature 4: Phase turn button Feature 5: Powered by 9 V battery Feature 6: Separate battery compartment with output jack EQ: 3-band EQ featuring single bass, middle & treble controls Including: piezo pickup (guitar), output/battery compartment device, and cable clamp Preamp Type: Guitar Color: Black