Operating voltage: DC12V Voltage range: DC10V-14V Operating current: 0.7-0.2A Connection method of the wiring (three): the red wire is connected to the positive pole of the power supply, the black wire is connected to the ground with the ear, and the green wire has two connection methods: one is to directly connect the positive pole of the power supply, so that the antenna moves up and down with the power on and off, and the other is to connect it separately. Control line, so that the antenna can be controlled up and down while moment. Extension length: 750 (outside car length) Lower protection plate: 305mm Cable length: 1400mm Voltage: 12VDC Stainless steel antenna mast, five sections, good AM/FM reception performance, lower working current 0.5A The noise is lower than 50DB, the service life is more than 50,000 times, the maximum force is greater than re 4KG and poly Good waterproof performance, easy to install, multiple mounting heads optional, Built-in import micro relay, 3C-2V coaxial cable, cable length is customized. Economy car fully automatic antenna Five section stainless steel mast The mast is 39 inches long Good FM radio Low noise, good waterproofness Easy to install High quality external micro relay, long service life Cable 3C-2V coaxial, 75 ohm impedance Installation angle: 0-30 degrees Number of delivered pieces: 1 lucky meet