DescriptionItem Type:SpeakersImpedance:4ohmsSignal To Noise Ratio:0.1Car Maker:Acura，Aston Martin，Audi，Bentley，BMW，Bugatti，Buick，Cadillac，Chevrolet，Chrysler，citroen，Daewoo，Dodge，Ferrari，Ford，GMC，Honda，Hummer，Hyundai，Infiniti，Jaguar，Jeep，Kia，Lamborghini，Land Rover，Lexus，Lincoln，Lotus，Maybach，Mazda，Mercedes-Benz，Mercury，Mini，Nissan，skoda，Subaru，Suzuki，Toyota，VolkswagenFrequency Range (Hz):4 KHZ ~ 26 KHZOut Power:180wattMaterial Type:silk membrane trebleSpeakers Types:TweetersItem Size:1inchVoltage:12VAudio Sensitivity:90dbSpecial Features:High EfficiencyCar Make:UniversalColor Name:BlackItem Weight:0.2 kg