Mini Metal Distortion Guitar Effect Pedal with Ture Bypass 6.35mm Jack Accessory Features:<br style="white-space:normal;" /> Mini and portable, and hard metal shell is stable and durable. The TONE Knob: to control the amount of high frequency. Once you give a clockwise rotation&nbsp;to it, the voice will become more and more pitched, on the contrary, you rotate it anti-clockwise and will decrease the frequency. The GAIN Knob: to adjust the amount of distortion. Clockwise adjusting direction is&nbsp;increasing the distortion degree and anti-clockwise direction is reducing it. The LEVEL Knob: to manage the level of signal. the adjusting principle is the same as the above&nbsp;two. While the effect pedal is in work condition, you can adjust the corresponding effect&nbsp;volume via this knob. Standard 6.35 mm side output and input jack fits for most connectors. Classic distortion tone&nbsp;effect pedal for your guitar.&nbsp; <br style="white-space:normal;" /> Specification:<br style="white-space:normal;" /> Condition: <br style="white-space:normal;" /> Material: Metal + Electron<br style="white-space:normal;" /> Color: Red<br style="white-space:normal;" /> Jack: 6.35 mm / 0.25 inch<br style="white-space:normal;" /> Power Supply: External 9V battery or AC 9V adapter<br style="white-space:normal;" /> Dimensions(L x W x H): Approx. 110 x 70 x 50mm / 4.33 x 2.75 x 1.97inch<br style="white-space:normal;" /> Weight: Approx. 277g&nbsp;<br style="white-space:normal;" /> <br style="white-space:normal;" /> Packing List:<br style="white-space:normal;" /> 1 x Guitar Effect Pedal 1 x Cable 1 x Sticker 1 x User Manual Note: Please use the 9V power adapter whose polarity is positive pole outside and negative pole&nbsp;inside. Otherwise, the product may not work properly.