Car Super Tweeter TW28D:
25mm Ksv vocie coil                      
ferrite magnet     
titanium dome       
3.3uf/100v NP capacitance                                                     Impedance:8ohms                                                          
Power rating:200 Watts .
Sensitivity:100dB/m/w                                                    
Packaging:1 Pcs in color box