DESC: 1.5 Titanium Super Tweeter Die Cast Aluminum Frame 1.5 High Temperature Kapton Voice Coil 60 oz. Magnet Structure Weight 150 Watts RMS/300 Watts Peak Power 4-8 Ohms Impedance/Ferro Fluid Enhanced Sensitivity: 105dB Frequency Response: 2k-25kHz Single Pack in Gift Box Crossover Capacitor Included 4 Diameter/2.5 Mounting Depth