This bundle features the Kicker 51KPX5001 KPX500.1 500-Watt Powersports & Motorcycle Subwoofer Amplifier, 2x Kicker KMF12 12-inch (30cm) Weather-Proof Subwoofer for Freeair Applications 4-Ohm, and 2x Kicker KMG12 12-Inch (30cm) Grille for KM12 and KMF12 Subwoofer, LED, Charcoal. Elevate your road trips with the Kicker 51KPX5001 KPX500.1, a compact 500-watt amplifier designed for motorcycles, providing big sound in a small package. Specifically built for motorcycles, this weather-resistant amplifier delivers 500-plus watts of power in a compact form. Versatile connectivity allows compatibility with various radios, and the optional CXARC remote bass control enables adjustments on the go. With dimensions of 3-5/8" W x 1-11/16" H x 8-1/2" L, this amplifier is perfect for under motorcycle fairings. The 2x Kicker KMF12 12-inch Subwoofers are marine-grade, weather-resistant, and feature a polypropylene cone and Santoprene surround for durability. With 175W RMS continuous power handling, the subwoofers deliver deep, loud bass for any marine environment. The package includes 2x 12" woofers, back gaskets, mounting screws, clips, and a manual. The 2x Kicker KMG12 12-Inch LED Grilles are designed for KM or KMF 12-inch subwoofers, offering waterproof protection with silicone-coated LEDs for added flair. Pair with the KMLC LED Controller (sold separately) for 20 colors and 19 lighting modes. Enhance your audio experience on the road or water with this high-quality bundle.