Thank you for your interest in the product. Please read the following before making a purchase. We offer discounts at various times, so please be patient. [Product Condition] Product Name: PKG-M1000V-BK Brand: ALPINE Serial Number: W20912032 Usage: Please check the photos for the condition and included accessories. If it is not shown in the photos, it is not included, so please be aware. Note ⚠️ There is a missing part in some of the wiring (see photo 5). Before listing and shipping, we check the operation and record it in photos and videos, but we may overlook something as we do not check all operations. We try to describe known defects in detail in the photos and description as much as possible. Also, if a defect is found before shipping, we may cancel the transaction with the reason stated, so please understand. As this is a used precision instrument, it is unknown when a defect may occur, and we cannot provide a warranty. Please have it serviced if necessary. Therefore, we do not recommend purchasing this product if you are unsure about the product's knowledge. If you are looking for a perfect condition or warranty, please purchase a new one. We will not negotiate discounts after purchase, so please understand. Please read the self-introduction section before purchasing.