Features:¤ bottom magnet, can absorb the iron metal is not easy to fall¤ not directly connected to the plug, plug and play¤UHF / VHF dual reception¤ rugged waterproof, easy to install regulation,¤ focus only face tuner to receive, the better¤ with 1 m standard feederTechnical Parameters:Frequency range: 45 ~ 910MHZOutput Impedance: 75ΩVSWR: <4Line length: 3 mTips: How much effect indoor antenna and receive local television stations with transmitterHow many radio stations as well as the number of towers transmit your geographical location haveOff, thank you!