Origin : Mainland China Item Type : Aerials Universal Retractable Car Antenna Auto Retractable Radio Antenna Retrofit Kit 12V External Car Antenna Car Replacement For Car feature:The noise is le than 50DB, the service life is more than 50,000 times, the jacking force is greater than 4KG, the waterproof performance is good, the installation is convenient, multiple mounting heads are optional, waterproof, easy to install, and multiple mounting heads are optional. The built-in imported miniature relay is equipped with 3C-2V coaxial cable, the length is adjustable.feature:1. Stainle steel antenna pole2. Good AM/FM reception performance3. Built-in imported micro relay4.3C-2V coaxial cableSpecification:1*antenna pole extension: 78CM2*Impedance: 75 ohms3*Noise: le than 50DB4*Working current: le than 0.5A5*Service life: 50000 times or more6*Top power: more than 4KG7*Working voltage: DC12V8*Voltage range: DC10V-14V9*Working current: 0.70.2A10* Wiring (3) Wiring mode: the red wire is connected to the positive pole of the power supply, the black wire is grounded to the ear, and the green wireThere are two wiring methods:1. Directly supply power to the positive pole, so that the antenna will be energizedLift2. Connect another control wire so that the antenna can be raised and lowered at any time;Package Included:1 * Auto retractable car antenna