Product details:

These great-sounding speakers from Boss are built to handle the elements. The molded polymer baskets are tough and water-resistant, and feature a UV coating for protection from the sun. Polypropylene woofer cones with rubber surrounds and 1" voice coils belt out the lows, while the 1" Mylar dome tweeters fill out the sweet high end. Includes integrated black polymer grilles and corrosion-resistant installation hardware.Pair of 200W MAX 100W RMS 2-Way Speakers per Pair
80 Hz to 20 kHz frequency response and 90 dB sensitivity
Woofer polypropylene membrane and rubber cord