AUTOLOVER Ant-208 Car Radio Signal Amplifier FM Aerial Antenna Booster for Marine Car Boat Truck RV Antenna booster, Thicken the horse mouth metal shielding cover, all-round protection. Enhance the radio signal and reduce the noise, Work for both AM and FM radio stations. Able to provide high output current, low harmonic distortion and cross, ensure security operation. Copper signal wire, strong anti-interference, providing better signal; Improved performance TDA2002 (pin - to - pin compatibility). Very low external component count, Easy to assemble, saving cost and space.