TERK Dual-Drive, Amplified Indoor / Outdoor FM Antenna Captures signals in front of and behind the antenna with equal strength Optimum FM reception of weaker and distant stations Dual-mode amplifier allows a choice for best gain setting Weatherproof, paintable housing Be storm ready - stay informed with access to local weather, news, emergencies and school closings Meets or exceeds CEA performance specifications for indoor antennas Designed and engineered in the USA