Thank you for viewing. I am selling the Tri Logic Bass Preamp Ⅲ. The original box and manual are not included. This is a sale of the main unit only. I have used it for several years, but there are not many noticeable scratches or stains, and it is generally in good condition with some signs of use. There are no operational problems, and I have confirmed that it works with both batteries and an adapter. While it doesn't have a strong personality, it is packed with a variety of functions. The drive voltage can be changed, and you can select high gain or low gain, allowing for a wide range of sound creation from clean to overdrive. Despite its compact size, the EQ operation can be finely adjusted and is very effective. I used it more as a corrective tool than as the core of my sound creation. Just by stepping on this, it brings the sound forward without being unpleasant. It is also very effective for adjusting the blend with the backing track with a slight distortion, and for cutting ultra-low frequencies and harsh high frequencies. I think it's a really reliable pedal when you're in trouble because it can do so much. The solid feel is also wonderful, more than it looks. Please understand that this is a used item before considering purchasing it.