Stytle:35 MilesChaowei DVB66 Portable Digital Antenna is an indoor outdoor HDTV antenna,working best for TV Tower 10-35 miles away, without using a boosterPls check the available channels and signal strength in your area by visiting"dtv.gov/maps" or "tvfool"1, If you are 35-50 miles away DTV Station and if the signals are weakened,pls try to couple with Chaowei AMP1801 TV signal amplifier booster,Chaowei DVB66 TV Digital Antenna will outperform an 50 mile amplified antenna by leaps and bounds.2.Small antenna for tv,be acceptable for all portable applications: portable tv,smart tv,PCI tuner card,digital tuner,DAB radio,RV etc.Good for car TVs3.If attach the magnetic base antenna to a few metal things will improve the reception.And the magnetic base makes it setting a lot more stable and sturdy than other products out there.4.Setting Options-Put it on any metal surface like file cabinet,metal rack,window frame,cable box; sit on table; attached to the back of TV/door/bookcase; even mount it on a metal plate in the attic or roof,it would work like a deep space satellite dish!Chaowei Indoor TV Antennas for HDTV:Frequency:VHF-Hi 170-240 MHz,UHF 470-860MHzGain:5dBPolarization:VerticalImpedance:50ΩVolts: 5V/25mAOperation temperature: -30～85℃TIPS: How well it works,depends on many factors,specifically the distance to the TV tower,signal strength,terrain,building construction,trees and elevation all affect TV receptionIf your antenna is not working:1) Make sure your TV has a builtin ATSC tuner;if NO, pls get a HDTV receiver/set-top box to work;2) Make sure there are available OTA channels in your area,and the signals are strong;3) Try to moving it around your house or Try scans from a couple different places and angles to see where you would get the best reception.