I purchased this about a year ago and used it twice in live performances. As a result, there are some minor scratches on the casing, but there are no issues with the operation, and I think it feels almost new. Please check the photos for the condition. If you have any other questions, please feel free to ask. In addition to the main unit, the following items are included: Outer box, quick guide, instruction manual, sticker, warranty seal, warranty postcard, and My Moridaira user registration guide. (All items that were included at the time of purchase.) I have set the shipping time to 2-3 days just in case, but I will ship it as quickly as possible. Instant purchase is welcome! Thank you very much. m(_ _)m Quoting from the official website: The MXR® M87 BASS COMPRESSOR is a compressor that adopts standard controls (ATTACK, RELEASE, RATIO, INPUT, OUTPUT) like a studio outboard compressor, enabling detailed settings just like in recording. It provides studio-quality compression, smoothing out dynamics while achieving a natural and rich sound. As a professional tool that supports a wide range of genres, it is active in live performances and recordings. CHT™ (Constant Headroom Technology) outputs a clean sound with a wide dynamic range. The MXR M87B BLACKOUT™ SERIES BASS COMPRESSOR is a limited color model of the "M87" released to commemorate the 15th anniversary of "MXR BASS INNOVATIONS," the MXR series for bassists. It is a stealth-finished pedal with a matte black casing, gloss black text, and bright yellow LEDs.