The product is a Harman Kardon Becker sound amplifier for Mercedes S Class 2006-2013 W221 models. It is a direct replacement with a silver colour, manufactured by Mercedes-Benz in Germany. The amplifier has 2 channels, 4 Ω impedance, and is an original part guaranteed to work. It is a single unit and has been tested for proper functionality. The product also includes features like being company branded and has a good working status. The buyer will be responsible for paying custom fees to clear the item.
eBay