1" Aluminum Titanium Tweeter 250 Watts Max 125 Watts RMS Frequency Response: 2K-20KHz Sensitivity: 105dB 1" High Temperature Kapton Voice Coil Ferro Fluid Enhanced Voice Coil 4 Ohms Diamond Chrome Cutting Finish 25 x 8mm Neodymium Magnet Structure Mylar Crossover Capacitor Included Diecast Aluminum Frame! Sold Individually