The product is a genuine OEM Harman/Becker audio amplifier specifically designed for the 2011-2013 BMW F10 5-Series models. Made with high-quality materials sourced from Germany, this silver unit carries a manufacturer part number of 9233592 01 / 923359201 / 9 233 592 01 / 9233592-01. It comes with a warranty of 1 month and is a single unit required for installation. This amplifier is designed to enhance the in-car entertainment experience for BMW owners, ensuring a reliable and authentic fit for their vehicles.