3.5"Hihg quality Marine speaker 903-0113
 0.75inch Ksv vocie coil +  plastic basket+ ferrite magnet,4.0mm top black plate, 
Rubber edge and pp cone , 13mm PEI dome tweeter  neodymium  magnet
 Power rating:15watts,max power:30Watts
Sensitivity:88dB/m/w                                                              
Packaging:25Pair in box