Instant purchase is welcome. This is a digital reverb (12-bit, 31.25kHz) from the Micro Rack series, released from the late 1980s to the early 1990s. Despite its compact half-rack size, it delivers high-quality sound and is popular as a vintage effector, featuring various reverb modes and stereo input/output. Main Features and Specifications: Series: BOSS Micro Rack Series Features: 12-bit early digital sound and a compact body Modes: Equipped with various reverb modes, including delay and reverse Controls: Mode, decay, and level adjustments are possible It's in good condition, with no major damage, crackling, or noise, considering its age. A genuine BOSS adapter PSA-100S is also included, so it's ready to use immediately. Operation has been confirmed, cleaned with disinfectant wipes, and packaged in a vinyl pack. It will be further wrapped with cushioning material for shipping. (Please understand this is to prevent damage and water damage.) There may be some dirt and scratches that couldn't be completely removed during cleaning. Please understand that this is a used item before purchasing.