Features:
2 types of metallic sound and built-in 2-Band EQ.
Tone lock function, disable knobs function to ensure preset won't change during performance.
True bypass design, minimize loss of tone and get more control of pedal.
Aluminum alloy housing, good durability.
4 control knobs: Gain, level, bass, treble.
The pedal can be powered by a 9V battery or power adapter.(neither included)

Diagram of Metal Core:


1.Power in
2.Gain knob: Control the gain of metal
3.Bass knob: Adjust the bass of metal
4.Out jack: Connect core to guitar's amp
5.On / Off switch
6.Tone lock & variable toggle switch: Select Voice 1 or Voice 2; freeze current by switching it to middle position
7.Level knob: Control the level of metal
8.Treble knob: Adjust the treble of metal
9.Indicator LED: Indicate status of effect - On / Off
10.Input jack: Connect core to guitar

How to connect:


Specifications:
Presets: 1 storable user preset
Sampling frequency: 44.1 kHz
A/D converter: 24-bit
Signal processing: 32-bit
Frequency response: 20Hz-20000Hz ±1dB
THD+N: 93dBu (<0.003%) A-Weighting
Dynamic range: 100dB
Input: -20dBV 1M┯
Output: -10dBV (output load impedance of 10k┯or more)
Power: 9V DC (9V Battery or ACD-007A Adapter)(neither included)
Product size: 12.1 * 6.5 * 3.3cm/ 4.8 * 2.6 * 1.3in
Product weight: 293g / 10.3oz
Package size: 12.9 * 9.5 * 5.9cm / 5.1 * 3.7 * 2.3in
Package weight: 348g / 12.3oz

Package List:
1 * Metal Core
1 * User Manual(English & Chinese)