355938 High quality and novel design Easy to install PVC material Color: Black Material: PVC Size: about 20 x 4.5 cm Cable length: about 1.9m Power supply voltage: DC 12V Operating frequency: 88 - 108MHZ Gain: 20 ± 3dB Noise factor: ≤7dB Output impedance: 75Ω Working temperature: -20°C to +70°C The booster box comes with stickers， which are convenient for fixing position Application: car TV and other FM radio signal receiving， increase the receiving range， enhanced receiving sensitivity of weak signals. 1 x TV antenna In original package