Size: SMA Plug Only Not only can the antenna receive analog signal, but also digital signal, as long as your device is with the corresponding signal receiver! 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. This TV antenna will help improve your car??s TV picture quality by strengthening your tuner??s ability to pick up TV receptions. And will also increase the strength of the input signal your radio receives. This assures you a better signal and a more reliable reception. It easily sticks to the Front or Rear Windscreen so, no matter how far you travel, and your car will have entertainment wherever it goes! Please note: This TV antenna has an SMA connector Specification: Power supply electric voltage: DC 5V or 12V Electric current: 10~40mA Work frequency: VHF 170-230MHZ UHF 470-860MHZ Increase a benefit: 25 dB Voice coefficient:?? 7 dB Output resistance: 75 ?? or 50?? Cable Length: 3M Connector: SMA Work temperature-20 ???¡Á+85 ?? Keep temperature-40 ???¡Á+90 ?? Package: TV Antenna