1.1Rate power                           4w          
1.2Sensitivity                             100db                     
1.3Impedance                            4 ohm                          
1.4Frequency                             500-5khz                  
1.5Cone                                      plastic                
1.6Voice coil&Material                13.28mm plastic
1.7Magnet size                            32*18*4mm  NEO     
1.8Size                                         57*17.5Hmm   
1.9Weight                                     55g