Free Channels: You can save money and get all the free channels with an HDTV antenna. It features high gain and low bit error rate digital TV reception, and you can enjoy all news, sitcoms, kids and sports for free. Maximum Reception: The booster can enhance the signal weakened by obstacles between the TV antenna and the local broadcast tower, and the receiving signal range can reach 80 kilometers. Magnetic Antenna Base: Add a magnetic base for easy access to more channels; Magnetic base is used to connect metal, because thick antenna helps to improve the signal. Moisture and Thunder Protection: With the unique plastic case, you can enjoy your favorite TV shows during thunderstorms without worrying about thunderstorms. Small and Lightweight: Small but powerful antenna and magnetic base make it very portable. It doesn’t take up much space and is perfect for blending in with its surroundings. Material: ABS Color: Black Cable Length: 50cm Frequency: 45-862 MHz Gain: 25dB Power Supply: 5V 1A Noise parent: Less than 4dB Quantity: 1 Set Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.