The CH6530B 6.5 Inch Car Door Speakers are a pair of coaxial, 3-way, full range car speakers designed for in-car audio systems. They have a maximum output power of 300 watts and a frequency response of 100 Hz. These speakers are compatible with smartphones and MP3 players, offering stereo audio output mode. They are lightweight and have a sleek black design, making them a stylish and powerful addition to any car's audio system. With a warranty of limited duration, these speakers are perfect for music lovers looking to enhance their in-car audio experience.