PYRAMID TW105 3.75" 300W Square Car Audio Piezo Horn Super Tweeters New Pyramid TW105 300 Watt Horns (4 Tweeters) 75 Watts RMS (150 Watt Total) 150 Watts Peak Power (300 Watt Total) 3.75'' Square Super Horn Tweeter Frequency Response: 4-20kHz