Features:

1.DC IN Power Jack: use 9V DC adapter(Positive outside Negative inside).

2.LEVEL Knob: This knob adjust the level of overall output.

3.TONE Knob: This knob controls the tone of the effect sound.

4.BOOST MODE Switch: Switch between Lo Boost, Boost Off and Hi Boost mode.

5.DIST Knob: Adjust the gain of the distortion sound.

Specifications: 

Effects Mode: 3 Mode (Lo Boost, Boost Off, Hi Boost)
Input impedance: 1 M Ohms
Output impedance: 470k Ohms
Working current: 20 mA
Power Supply: 9V AC adapter Dimensions: 93.5mm (D)*42mm (W)*52mm (H) 
Weight: 170g (with box) 

Package included: 
1 x Inferno guitar effect pedal
1x velvet bag
1 x User's Manual

Precautions: 
Environment: 
1. Do not use the pedal in high temperature, high humidity, or subzero environments. 
2. Do not use the pedal in the direct sunlight. 
3. Please do not dissemble the pedal by yourself. 
4. Please keep the manual for future reference.