I purchased this item used and have taken it out and used it many times. This is an auction for the main unit only. Please refrain from purchasing if you are concerned about the condition. The following is a quote from the product description: A buffer from the collaboration series between MXR and Custom Audio Electronics (CAE). It not only improves sound quality through the buffer effect within the pedalboard but is also excellent for running two amplifiers or as a signal splitter from the pedalboard to an amplifier and DI. Both outputs 1 and 2 can have the buffer effect applied, and even when splitting the signal, you won't feel any loss of sound quality. It's especially ideal for sending signals from pedals on the board to a DI like the Two Notes OPUS. The buffer on output 1 can be turned ON/OFF with an internal DIP switch, but in this type of usage, it's recommended to keep it ON to benefit from the gain adjustment, low-cut, and high-cut switches. * You need to remove the three jacks to operate the internal DIP switch. Please be careful not to damage them when removing them. Also, if the power supply is no longer shared due to some kind of trouble, it will automatically go into true bypass, so you can use it with peace of mind as the sound will not be cut off even in the unlikely event of a problem. It's a must-have item for today's era, where line output is becoming mainstream, as well as for sending signals to a regular amplifier. Specifications 9V AC/DC adapter operation only Current consumption: 43 mA