ANTOPCurved-panel Indoor HDTV Antenna with High Gain Smartpass Amplifier and built in 4G LTE Filter, Multidirectional Long Range Reception, AT-211B ★Disclaimer★ Channel reception quality will vary depending on what's being broadcast in your area, how far away you are from broadcast towers, and your surroundings BEFORE PURCHASING this antenna, please CHECK OUT what channels are available in your area via：dtv.gov/maps. ANTOP Technology An exclusive technology offered by ANTOP, the inline Smartpass Amplifier's all-in-one design ANTOP was the first antenna manufacturer to include a built in 4G LTE filter. By following the simple tips below, you can enjoy FREE TV with you ANTOP Antenna - Adjust and turn the extendable telescopic antennas for the best VHF reception. Re-scan the channels after each switching of the Smartpass Amplifier. - Scan channels monthly to find all available channels including newly added or changed. - Do not place or hide the antenna in/behind any metallic objects. - Install the antenna as high as possible and near a window for better reception. - Keep the antenna away from any high power consumption devices to avoid interference. Features Range: 40 to 50 miles from point of signal originationPower Supply: DC 5VReception Pattern: Multi-directionalPolarization: HorizontalColor: Piano BlackSize: 9.00x4.72x0.35inCoaxial Cable: 10' IntegratedExclusive Technology: Smartpass Amplifier, Built in 4G LTE FilterSmart Switch On: Long range receptionSmart Switch Off: Short range receptionWhat's in the box AT-211B CURVED PANEL Smartpass Amplified Digital Indoor HDTV AntennaAC/DC Power AdapterStand10ft Coaxial Cable Instruction/User Manual