this car speaker is ISO and CE certificated ,Traffic Road safety,Water proof and dust proof ,Live time:more than 100000 hrs

this car speaker Technical Datas is as below:1.Rated Power20W  2.Rated Voltage: 12V 3.Rated Impedance:4Ω,8Ω    4.Frequency Range: 550-5000Hz 5.Sound Pressure:115-120Db  6.Sound Distortion Factor:≤5%  

car speaker(FS200W1-4)