I purchased this on Mercari. It is a used item. I found it difficult to handle due to things like accidentally stepping on the wrong switch, so I am putting it up for sale. I will quote from the original seller's description: --- This is a modified item by Soul Power Instrument. Modifications: ① Addition of a Mid EQ knob Mid control, which is not present in the original. One has been added on the side of the enclosure. ② Addition of a booster (pre-stage) Pressing the added footswitch turns the separate booster circuit ON/OFF. The LED on the side of the enclosure lights up when ON. Controls are tone and level. These can also be adjusted with the knobs added on the side of the enclosure. ---------------------------------------------- The following is quoted from the product page when I purchased it: The OD-1X already has a wide range of distortion and is a very easy-to-use model, but by adding a mid control and a booster that can further amplify the gain, it can handle various scenes with just one unit. I aimed for the ease of just putting this one unit in a case when going to the studio. --- The main unit has only been used a few times in the studio. It is a used item, so please consider purchasing it with the understanding that it is used. Only the main unit shown in the photos is included. There is no outer box or instruction manual. The Velcro is still attached. It will be packed with bubble wrap and shipped in a small cardboard box. #boss #od1-x #overdrive Type...Electric Guitar