System: 5" 2-way Coaxial Speaker Tweeter: 30 mm PEI cone tweeter Magnet: 8 OZ Voice Coil: 1" Impedance: 4 Ohms Power: 60 Watts RMS,150 Watts Peak Frequency: 70Hz-22k Hz Senditivity: 89dB/M.W Carton: 41*37.5*35 CM Qty./Ctn: 10 pairs