Packing size: 34*9*6CM Model: BF-686 Working voltage: DC12V Voltage range: DC10V-14V Wiring (three) connections: the red wire is connected to the positive pole of the power supply, the black wire is grounded with the ears, and the green wire has two connection methods: one is to directly connect the positive pole of the power supply, so that the antenna rises and falls with the power on and off, and the other is connected to another Control line, so that the antenna can control the lift at any time. Stretching length: 750 (length outside the car) Protective bottom plate: 305mm Cable length: 1400mm Voltage: 12VDC Stainless steel antenna pole, five sections, good AM/FM acceptance performance, working current less than 0.5A The noise is less than 50DB, the service life is more than 50,000 times, and the top force is more than 4KG Good waterproof performance, easy to install, can be equipped with multiple mounting heads, Built-in imported micro-relay, 3C-2V coaxial cable, the length of the line is determined by the customer. Economical car fully automatic antenna Five-section stainless steel antenna pole The antenna mast is 39 inches long Good FM radio Low noise, good waterproof Easy to install External high-quality micro-relay, long service life 3C-2V coaxial cable, impedance 75 ohm Package included : 1 x Antenna Kit