Simple indoor antennas will usually be sufficient for locations having strong TV signals.SMD technologyEasy to install and convenient to useBuilt - in high Gain and low noise adjustable amplifier Specification: Frequency range : 40-862 MHZ Receiving Range : UHF/ VHF/ FM Gain: VHF: 26dB, UHF: 28 dB Output level : 95 dB μ V max Impedance : 75Ω Niose figure: ∠6.5 dB Power supply : AC 110V/ 230V 3.5 W , DC 12V / 100 mA Tuming Degree: VHF: 360 UHF: 90