Item Type:SpeakersImpedance: 4ohmModel Name: LB-PS1401DSignal To Noise Ratio: 86dBFrequency Range (Hz): 100-12KHzOut Power: 40WMaterial: Iron，sponge edge， paper carcassSpeakers Types: Speakers SetsItem Size: 4 InchesVoltage: 12 VAudio Sensitivity: 86dB/w/mVoice coil: 20mm ASVColor Name: SilverItem Weight: 0.6 kgCar 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，Maserati，Maybach，Mazda，Mercedes-Benz，Mercury，Mini，Mitsubishi，Nissan，Opel，peugeot，Pontiac，Porsche，Ram，renault，Rolls-Royce，Saab，Saturn，Scion，Shelby，skoda，Smart，Subaru，Suzuki，Tesla，Toyota，Volkswagen，Volvo，yamahaIf you're Brazil customer，please provide your CPF number or CNPJ number to us.It will be better for you to declear the custom.If you're russia customer，please provide your whole name so that we can send it to you the product (this is very important!!!)