Includes: (2) 6.5" speakers (2) tweeters (2) Crossovers (2) Grills Flush and surface Mounting accessories Speaker wire Rockville car audio speakers utilize the latest in speaker technology for superior sound quality. We use top quality polypropylene cones which are known for their high damping qualities. This means they can have a controlled break-up, which results in a smoother high frequency roll-off. Our Flexmotion Butyl Rubber Surrounds give the speakers a smooth response with minimal distortion. For smooth and extended high frequency sounds we used high temperature PEI dome tweeters with ferrite magnets. The RV series speakers are designed with superior SPL response and extremely high power handling making these perfect for use with the amp built into your receiver or with a high powered external amplifier. Due to their shallow mount design, these speakers fit in 97% of all vehicles. CEA Rated. Rockville car audio speakers are CEA rated, what that means is that the Consumer Electronics Association recognizes these speakers to be accurately rated and meet their rigorous standards for wattage, SPL and frequency response. So while other manufacturers state "out-of-this-world" wattages on their products, you can rest assured that your Rockville speaker will work up to spec. and exceed your expectations. Top of the line components! Rockville speakers only use the best sourced components. We use efficient and high powered magnets along with aluminum voice coils wound with 100 % oxygen free copper. We pay attention to every detail ensuring you get the best sound in your car.