brand new and high quality Features: The receiving part of this product is made of special high-conductivity materials and is equipped with signal amplification function. This product can be mounted on the car or on the rear view glass window to make the FM sound quality clearer and more stable. This product has a high quality, novel shape and a wide receiving range. Specification: Power supply voltage: for DC 12V Power: 60-100 MA Working frequency: 48-860 MHZ Gain: 203dB Noise figure: 7dB Output impedance: 75 Output standing wave: 3 Output line length: 1.5CM-4CM follows the guest's request Working temperature: -20 C + 70 C Storage temperature: -40 C +90 C Applicable to: car FM signal reception, can increase the receiving distance and enhance the receiving sensitivity of weak signals. Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(without retail package): 1 Car FM Antenna