ITEM NAME:Car Stereo FM&AM Radio Signal Antenna Aerial Signal Access Bo Amplifier Amp T6J6 Features: Signal enhancement and noise reduction Copper signal wire, strong anti-interference ability, can provide better signal Thickened metal shielding cover for horse mouth, all-round protection Easy installation, cost and space saving Product specification: Color: Black Length: About 330mm Connector standard: Male / female radio antenna interface waterproof Gain: 12-13db Noise factor: > 2 Impedance: 75 ohms Power supply: DC10 ~ 15V Applicable to: receiving automobile and other FM signals, increasing receiving distance and signal sensitivity Packing list: 1X car radio signal power amplifier 1X 3M adhesive tape 1 quick connector 2 cable clamps.1X car radio signal power amplifier. Connector standard: Male / female radio antenna interface. Copper signal wire, strong anti-interference ability, can provide better signal. Color: Black. Impedance: 75 ohms.