Item Type: SpeakersModel Name: DDT-F25BImpedance: 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: BlackItem Weight: 0.2 kg