Features & Specifications:
Mylar Diaphgram 
Neodymium Magnet 
Ferro-Fluid Cooled Voice Coil 
High Temperature Abs Housings 
Complete With Flush And Surface Mount Hardware 
30w Rms / 300w Max Music Power 
Frequency Response: 1.5khz ~ 30khz 
Sensitivity: 90.7db/W/M 
4 Ohms Impedance

Orion CT-T15 Cobalt Series 300 Watts Max Power Car Audio Tweeters