(2) Pairs of Kicker 41CST204 3/4" CS-Series 4-Ohm Car Tweeters with Hardware for Angled, Surface or Flush mounting - Totaling 400 Watt Peak/200 Watt RMS CS-Series Car Tweeters. 200 Watts Peak/100 Watts Peak Per Speaker. 100 Watts RMS/50 Watts RMS Per Speaker. Impedance: 4-Ohms. This high-frequency upgrade for dull factory tweeters gives any system a polished sound and feel. Available as a robust 20mm pair, featuring lightweight neodymium magnets and titanium domes for crisp response from even the lowest powered audio systems. A dependable 6dB/octave crossover with in-line design and poly-switch is built in for the listener who chooses to have a substantial increase in volume. Includes hardware for angled, surface or flush mounting are included for aiming sound in the appropriate direction. Tweeter [in,mm] 3/4, 20. Dome Material Titanium. Rated Impedance [O] 4. Sensitivity [1W, 1m] 92. Frequency Response [Hz] 4,500-21k. Flush Mount Tweeter Depth [in, mm] 9/16, 14.5. Flush Mount Tweeter Hole Diameter [in,mm] 1-9/16, 40. High Pass [dB], at Frequency [Hz] 6, 450