It has minor scratches from use, but it is fully functional. This is an item for sale of the main unit only. New alkaline batteries will be included for shipping. A live solution tool for high-end acoustic guitarists The AD-10 is a 2-channel acoustic preamp/DI developed for guitarists who demand the best sound in any live environment. It delivers a rich and natural sound, just like when playing unplugged, even during live performances. In addition to a 4-band EQ optimized for acoustic guitars, it also features a wealth of sub-parameters that allow for detailed editing, enabling you to create high-quality sounds tailored to your instrument and playing style. It also has a wide range of inputs and outputs, allowing for flexible setups to suit live situations and advanced sound creation using multiple input sources. Furthermore, it is equipped with an anti-feedback function that eliminates acoustic guitar feedback issues, acoustic resonance that reproduces the natural "resonance" of an acoustic guitar, a compressor using BOSS's proprietary advanced "MDP" technology, and dedicated effects such as delay, chorus, and ambience tuned for acoustic guitars. Despite all of this, the basic operation using the knobs on the panel is very simple and intuitive. The AD-10 is a live solution tool that solves all the problems of acoustic guitarists in one unit. A compact body packed with tools to pursue the best sound The AD-10 was completed with uncompromising BOSS technology and a design that focuses on practicality in the field for electric-acoustic guitarists who are particular about sound. It is equipped with a high-quality preamp and a 4-band EQ specifically tuned for acoustic guitars. Numerous parameters are linked internally, allowing for very delicate and advanced EQ settings with just four knobs. The mid and low-cut bands can be finely adjusted, allowing you to respond to subtle changes due to environmental differences.