Features 1、GPS+FM car antenna, elliptical arc appearance, stylish and unique, very harmonious when installed on the roof. 2、Using parallel power carrier to supply power to the output 30cm power indicator separated design, can greatly improve the signal reception and transmission. 3、Features 12V voltage and 15db high gain, the standing waves ratio is less than or equal to 1.5, stable performance. 4、The installation is simple and does not require complicated operations, bring much convenience for you. 5、With a power indicator, adopts light‑transmitting technology, and has a signal lamp automatic fault detection function, which can detect fault conditions in time. It is convenient to judge whether the antenna is working normally or not. The red light indicates that the antenna is working normally. Specifications: Item Type: Car Radio Antenna Material: ABS + PVC Color: Black Working Voltage: 12V Standing Wave Ratio: ≤1.5 Gain: 15db Impedance: 75Ω Installation: 1. Install the roof antenna behind the roof 2. Fix the antenna with a mounting nut inside the car 3. Pull the antenna output line into the dashboard along the roof of the car 4. Connect the radio FM connector to the corresponding functional position of the car radio 5. Connect the power cord 12v to the vehicle power supply Package List 1 x Car Radio Antenna