DESC: 3 Titanium Super Tweeter Die Cast Aluminum Frame High Temperature Kapton Voice Coil 100 oz. Magnet Structure Weight 400 Watts RMS/800 Watts Peak Power 4-8 Ohms Impedance/Ferro Fluid Enhanced Sensitivity: 109dB Frequency Response: 2k-25kHz Single Pack in Gift Box Crossover Capacitor Included 5 Diameter/2 Mounting Depth