ANT-309 Car Electronic Stereo FM Radio Amplifier Antenna Aerial Hidden Amplifier Antenna Signal Booster, Length: 5m Filter-DVR Power Adapter the owner will know who

the owner will know who in front of the door and do not need open the door

low signal attenuation

high strength and no rust

The lens can be moved left and right

ANT-309 Car Electronic Stereo FM Radio Amplifier Antenna Aerial Hidden Amplifier Antenna Signal Booster, Length: 5m Filter-DVR Power Adapter the owner will know who1. Power: 8 ~ 50 MA, Voltage: DC 5 12V 2. Working frequency: 48 ~ 860 MHZ 3. Gain: 25 + 3dB (with amplifier) 4. Noise figure: <= 7dB 5. Output impedance: 75 Ohm 6. Output standing wave: <= 2 7. Output line length: 5 meters 8. Frequency range: 85 112Mhz 9. Working temperature: 20 ~ + 70 degrees Celsius 10. Storage temperature: 40 ~ + 90 degrees Celsius Specification: Package Weight One Package Weight 0. 11kgs 0. 25lb One Package Size 20cm * 15cm * 3cm