Ultra-Thin Amplified Indoor HDTV Antenna - UHF/VHF/FM In line 25dB signal amplifier - Flat, nearly-paper-thin design - Also great for FM reception Frequency range: 87.5~230MHz and 470~862MHz Power requirements: 12VDC, 50mA, AC adapter included Impedance: 75 - Connection: Female F connector Dimensions (excluding base): 5 (H) x 9 (W)