AUDIOPIPE BLACK BULLET 1" SCREW ON TWEETERS 25 x 7mm NdFeB magnet structure 200 Watts Max ( 400 Watt PAIR) 100 Watt RMS (200 Watt PAIR) Frequency Response: 2kHz-20kHz Sensitivity: 98 dB/w/m, 4 Ohms Impedance