The product is a set of four used OEM front and rear door speakers for a 2004-2009 Mazda 3. The speakers are oval-shaped, black in color, and have an impedance of 4 Ω. They are specifically designed for the right rear, left rear, right front, and left front doors of the vehicle. The manufacturer part number for these speakers is BN8P-66-960, ensuring a perfect fit and quality sound for your Mazda 3.