Thank you for viewing. Faithfully reproduces overdrive/distortion sounds from famous machines around the world using BOSS's COSM modeling technology. Furthermore, it is equipped with a mode that can simulate the legendary Rockman sound! You can reproduce that brilliant and soaring guitar sound of Boston with this one unit. Realistically reproduces over 20 drive sounds from famous machines with BOSS's unique COSM technology. Built-in Rockman simulator: Recreates that sound of 80s American rock. 2-channel design allows for seamless switching between clean and drive sounds. Equipped with a memory function to save your favorite sounds. Suitable for live performances, home recording, and practice. Condition: - Operation confirmed (no problems) - Minor scratches on the exterior, but overall in good condition. - Battery/AC adapter powered (adapter not included)