Specification AudioSensitivity : -55 decibels Brand : Heil Ham Radio BulletPoint : V-420 BulletPoint1 : Dual-Element Voice Tailoring: Equipped with Heil Ham Radio’s exclusive HC-5.1 and HC-4 elements, offering selectable audio profiles for full-range or DX/contest use—optimize your signal for any QSO. BulletPoint2 : Superior Audio Clarity: Engineered for articulate speech transmission, the HM-12 delivers crisp, clean sound with a wide frequency response tailored for amateur radio excellence. BulletPoint3 : Cardioid Dynamic Design: Reduces background noise and focuses on voice pickup, ensuring clear communication even in noisy shack environments or field operations. BulletPoint4 : Rugged & Lightweight Construction: Built for durability without sacrificing comfort—perfect for long operating sessions, portable setups, or contest stations. BulletPoint5 : Plug-and-Play Compatibility: Standard 4-pin XLR connection integrates seamlessly with popular ham radio transceivers—ready to elevate your audio straight out of the box. Color : Black CompatibleDevices : Radio ConnectivityTechnology : XLR ConnectorType : XLR ExternallyAssignedProductIdentifier : 5060173280765 ExternallyAssignedProductIdentifier1 : 810100412128 ExternallyAssignedProductIdentifier2 : 0810100412128 ExternallyAssignedProductIdentifier3 : 7991110083256 ExternallyAssignedProductIdentifier4 : 00799111008325 FrequencyRange : 50 hz - 16 khz FrequencyResponse : 14 KHz HardwarePlatform : Karaoke Machine Impedance : 600 ohm IncludedComponents : Microphone ItemName : Heil Ham Radio HM-12 Dynamic Microphone for Ham Radio – Dual-Element Voice Tailoring, Wide Frequency Response, Cardioid Pattern, Ideal for Amateur Radio Operators & Broadcast Clarity ItemPackageDimensions_Height : 22.606 centimeters ItemPackageDimensions_Length : 7.3914 centimeters ItemPackageDimensions_Width : 10.2108 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : multipurpose-dynamic-microphones Manufacturer : Heil Ham Radio Material : Alloy Steel Material1 : Plastic Material2 : Metal MaximumFrequency : 12000 hertz MicrophoneFormFactor : Handheld MinimumFrequency : 80 hertz ModelName : HM-12 ModelNumber : HM-12 NoiseLevel : 58 decibels NumberOfChannels : 1 NumberOfItems : 3 PackageLevel : unit PartNumber : HM-12 PolarPattern : Unidirectional PowerSourceType : Corded Electric ProductDescription : The Heil Ham Radio HM-12 Dynamic Microphone sets a new standard for amateur radio communication, delivering broadcast-quality audio tailored specifically for ham operators. Featuring Heil Ham Radio’s innovative dual-element design, the HM-12 houses both the HC-5.1 and HC-4 elements, allowing operators to easily switch between rich, full-range audio and a punchy, DX-optimized profile ideal for cutting through pile-ups and noisy bands. Designed with a cardioid pickup pattern, the HM-12 minimizes ambient noise, ensuring your voice is heard with clarity and precision—even in challenging environments. Whether you're operating from your home shack, participating in contests, or working portable during Field Day, this microphone enhances every transmission with articulate sound. Lightweight yet rugged, the HM-12 is built to withstand the demands of daily operation. Its standard 4-pin XLR connector ensures compatibility with a wide range of transceivers, offering true plug-and-play convenience. Experience the professional audio difference trusted by operators worldwide—because every QSO deserves Heil Ham Radio-quality sound. ProductSiteLaunchDate : 2015-01-22T20:34:16.216Z RecommendedUsesForProduct : Singing RecommendedUsesForProduct1 : Amateur Radio RecommendedUsesForProduct2 : Contesting & DXing RecommendedUsesForProduct3 : Portable & Field Day Operation RecommendedUsesForProduct4 : Base Station Use RecommendedUsesForProduct5 : Noise-Intensive Environments RecommendedUsesForProduct6 : Integration with Boom Arms & PTT Systems RecommendedUsesForProduct7 : Emergency Communication (EmComm) SignalToNoiseRatio : 70 decibels Size : 1 Piece StreetDate : 2020-01-29T00:00:01Z Style : Music SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 52161520 WarrantyDescription : 1-Year Limited Warranty