Description:High quality and novel designEasy to installColor: BlackSize: about 21.5 x 4.5 cmCable length: about 1.9mPower supply voltage: DC 12VOperating frequency: 88 - 108MHZWiring: Car FM radio interfaceGain: 20 ?à 3dBNoise factor: ?ü7dBOutput impedance: 75|?Working temperature: -20??C to +70??CApplication: car FM radio signal receiving， increase the receiving range， enhanced receiving sensitivity of weak signals.Package Included:1 x Car FM radio antenna