The product is a BMW OEM HiFi amplifier with the manufacturer part number 9312454 designed for the 2012-2018 BMW F30 F80 sedan models. This amplifier enhances the audio and radio sound system in the car, providing a higher quality and more powerful sound experience. With its OEM impedance, it ensures compatibility and optimal performance for the specified BMW models. Upgrade your in-car entertainment system with this genuine BMW amplifier.