Estone New Auto 12V Amplified Booster 35DBi Car Digital TV And AM/FM Radio Box Antenna This light, small and easy to set up Car TV/Radio AM/FM 2 in 1 Antenna Amplifier and Booster is the perfect addition to your car tuner The Car TV and FM reception, to increase receiving distance and enhance the receive sensitivity of the weak signal Operating temperature: -20 - +70 degrees Celsius Power supply: DC 12V Power supply: 20 - 30MA