Car Super Tweeter TW49S:
44mm Ksv vocie coil         
ferrite magnet      
titanium dome      
3.3uf/250v MET capacitance                                               
Impedance:  8ohms                                                          
Power rating:400 Watts      
Sensitivity:102dB/m/w                                                    
Packaging:1 Pcs in color box