Rokker XX Extreme speaker kit has been dialed in and optimized to provide on-highway volume, clarity and overall performance that most riders only dream about The custom designed ring-mounted dome tweeters are also weather-proof and shock-proof for maximum long-term durability This custom installation kit has been engineered to be 100% plug-and-play for your convenience during the installation and to maintain the complete integrity of your H-D's internal wiring harness Includes the 6.71" Rokker XX speakers, mesh grills, tweeter rings, Rokker XXR 350W RMS amplifier, and all plug-n-play wiring harnesses Standard 2-year warranty and in addition are covered by J&M's exclusive 20-year warranty to the original purchaser