A Great Music Performance For Every Curve In The Road. Infinity Kappa Perfect Speakers deliver the ultimate listening experience to two wheels. They are visually inspired by motorcycles & rider culture and combine materials centered on lightness and strength so they will last for miles and miles. They combine IPX5 Waterproof Construction Patented Plus One? Basalt Fiber Woofer Cones and Edge-driven Polyphenylene Sulfide-Dome Tweeters which provide an amazing soundstage with great bass and silky smooth highs. The removable tweeter design offer the coaxial and component system installation options which offering accuracy & enjoyable listening experience for the rider no matter the weather conditions on the open road. Features: Basalt Fiber Woofer with Plus One? Technology for Deeper and Bigger Bass 1 Edge-driven Polyphenylene Sulfide-Dome Tweeter to Reproduce Perfect Sound