Rockford Fosgate Prime 1-Inch Tweeter kit.Speakers feature Mica Injected polypropolene cones. CEA Certified 40 Watts RMS, 80 Watts peak power rating. Visit www.RockfordFosgate.com 24 hours a day for technical support or call (800)669-9899 M-F 7 am to 5 pm MST.