[High quality]: This car antenna Fm radio signal amplifier is made of high quality metal and ABS material, durable, not easy to break or crack, high reliability, wear-resistant, which can be used for a long time. | [High interference suppression]: This car antenna amplifier uses high-end antenna signal intensifier, built-in copper signal line for high noise suppression, strong anti-interference, so that the signal reception effect is better. Able to provide high output current, low harmonic distortion and cross, ensure security operation. | [High signal sensitivity]: Universal car antenna booster work for both AM and FM radio stations. And this radio antenna signal reception is equipped with a thickened horseskin metal cover to provide all-round protection for the radio. It can also increase the receiving distance of the signal and improve the signal sensitivity. | [Line protection]: This radio antenna signal booster amplifier has short circuit protection, when the original car antenna failure can automatically power off, the original glass column fuse replacement insert, do not worry about the occurrence of poor contact. | [Easy installation]: This car antenna amplifier aerials installation is very convenient. Just simply plug in the 12V power supply and install the amplifier between the radio and the antenna, no need to change the wiring of the original antenna. Glue is also provided for each amplifier for easy installation and fixing, in addition, this hidden antenna has no fixed installation position, it can be installed on any non-metallic surface.