1. Great clarity and definition - It's the same even if the pedal is set to a higher gain level. Just tell that most high-gain pedals kill a lot of definition during your plays, but the for METAL pedal never do that! So this should of the main selling points! Especially for these leading guitarists. 2. Wide range of tone control. When using some pedals, it can be very difficult to hear some different sounds when you adjust the tone control, but you can avoid this if you use the for Metal pedal. The pedal can help you freely insert the sounds you want! Even to find the new sounds you like the most! 3. Adjust the modeling frequency response: "Treble","Mid","Bass","Boost","Vol" and "Dist" 6 rotary knobs, EQ control, can help you realize the sounds of Metal,Rock and punk! With the combination of its 3-section EQ, unit, and rotary knobs, you can get all tones from heavy blues to hard rock to high-gain metal. Rotary Knobs: VOL: Volume Adjustment Superior Boost: High Gain Rotary Knob Treble: Adjusts the high-pitched voice Mid: Adjusts the mid-pitch voice. Bass: Adjust the low-pitched voice Distant: Adjusts the degree of distortion "OUT 1" and "OUT 2" are sound channels for output The "IN" is the sound channel for the input BOOST: ON/OFF switch for high gain Bypass: on/off Color:As Shown Material:Metal Package Contents: 1 * Guitar Effect Pedal Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.