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Communication - Accessories

Marine communication accessories are designed to enhance the performance, reliability, and convenience of your onboard communication system, helping you stay connected wherever your boating adventures take you. Engineered for demanding freshwater and saltwater environments, today's communication accessories include marine-grade microphones, extension cables, external speakers, mounting brackets, charging cradles, battery packs, antenna connectors, headsets, protective cases, and installation hardware built to withstand harsh marine conditions. These essential components help maximize signal quality, improve audio clarity, simplify equipment installation, and extend the life of your VHF radios, AIS systems, and other onboard communication devices. Whether you're replacing worn components, expanding your current system, or completing a new installation, the right accessories ensure dependable performance when clear communication matters most. Featuring premium products from trusted marine manufacturers, our Communication Accessories collection delivers the quality and reliability serious boaters expect. Browse our selection today and let our knowledgeable team help you choose the ideal accessories for your marine communication system.

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  • Standard Horizon SBR-23LI Li-Ion Battery Pack f/HX210 HX-40 [SBR-23LI]
    Standard Horizon

    Standard Horizon SBR-23LI Li-Ion Battery Pack f/HX210 HX-40 [SBR-23LI]

    $51.43
    $64.30
    $51.43
    SBR-23LI Li-Ion Battery Pack for HX210 & HX-40Standard Horizon SBR-23LI Li-Ion battery 7.4V/1850mAh for Standard Horizon HX-40 and HX-210 marine radio. Specifications: Type: Batteries Box Dimensions: 3"H x 4"W x 4"L WT: 0.15 lbs UPC: 788026158942
    $51.43
    $64.30
    $51.43
  • Shakespeare PL-259-58-G Gold Solder-Type Connector w/UG175 Adapter & DooDad Cable Strain Relief f/RG-58 [PL-259-58-G]
    Shakespeare

    Shakespeare PL-259-58-G Gold Solder-Type Connector w/UG175 Adapter & DooDad Cable Strain Relief f/RG-58 [PL-259-58-G]

    $19.99
    $22.85
    $19.99
    Shakespeare PL-259-58-G ConnectorShakespeare offers an extensive line of marine grade connectors and adapters for antenna installations. Our new connectors are gold-plated brass to better withstand the elements and to minimize traditional connector-borne signal loss.PL-259-58-G is a solder-type PL-259 connector with UG175 adapter and a...
    $19.99
    $22.85
    $19.99
  • Navico NSPL-500 Antenna Splitter [000-13612-001]
    Navico

    Navico NSPL-500 Antenna Splitter [000-13612-001]

    $422.98
    $0.00
    $422.98
    NSPL-500 Antenna SplitterSave the hassle of installing a costly second antenna and use your existing single antenna with VHF/AIS/FM, by enlisting the lightweight, compact NSPL 500 antenna splitter. When combined with the NAIS 500 AIS system, you can see and be seen on the...
    $422.98
    $0.00
    $422.98
  • Standard Horizon Microphone f/GX14xx GX18xx Series - Black [CS2596701]
    Standard Horizon

    Standard Horizon Microphone f/GX14xx GX18xx Series - Black [CS2596701]

    $32.85
    $49.94
    $32.85
    Microphone for GX14xx & GX18xx Series - BlackStandard Horizon's Speaker Microphone specifically for Standard's GX14xx and GX18xx Series.Features:Color: Black Specifications: Type: Microphones Box Dimensions: 2"H x 5"W x 8"L WT: 0.6 lbs UPC: 788026130887
    $32.85
    $49.94
    $32.85
  • Standard Horizon Charge Cradle f/HX40 [SBH-27]
    Standard Horizon

    Standard Horizon Charge Cradle f/HX40 [SBH-27]

    $32.85
    $40.01
    $32.85
    Charge Cradle for HX40Single charging cradle for Standard's HX40 Handheld Radio.*Requires power cable sold separately Specifications: Type: Chargers Box Dimensions: 2"H x 3"W x 3"L WT: 0.15 lbs
    $32.85
    $40.01
    $32.85
  • Standard Horizon Battery Tray f/HX750 & HX851 [FBA-38]
    Standard Horizon

    Standard Horizon Battery Tray f/HX750 & HX851 [FBA-38]

    $28.57
    $35.72
    $28.57
    Alkaline Battery Tray f/ all floating handhelds, accepts five (5) AAA batteries. Specifications: Type: Batteries Box Dimensions: 2"H x 3"W x 5"L WT: 0.1 lbs UPC: 788026111626
    $28.57
    $35.72
    $28.57
  • Standard Horizon Submersible Speaker Microphone [MH-73A4B]
    Standard Horizon

    Standard Horizon Submersible Speaker Microphone [MH-73A4B]

    $80.01
    $112.89
    $80.01
    Submersible Speaker MicStandard Horizon's Submersible Speaker Microphone for HH VHF radios Specifications: Type: Microphones Box Dimensions: 3"H x 5"W x 7"L WT: 0.4 lbs UPC: 788026130566
    $80.01
    $112.89
    $80.01
  • Standard Horizon Mounting Knob - Black ABS Plastic - Single [RA0978600]
    Standard Horizon

    Standard Horizon Mounting Knob - Black ABS Plastic - Single [RA0978600]

    $0.83
    $2.14
    $0.83
    Mounting Knob - Black ABS Plastic - SingleDimensions35mm diameter by 15mm thick, not including shaft which is 5mm diameter by 10mm longFits Standard Horizon modelsGX1000S Eclipse or GX1300S Eclipse GX1600 Explorer or GX1700 Explorer GPS GX2000 Matrix, GX2100 Matrix AIS, GX2150 Matrix AIS and...
    $0.83
    $2.14
    $0.83
  • Standard Horizon CT-100 23' Extension Cable f/Ram Mic [CT-100]
    Standard Horizon

    Standard Horizon CT-100 23' Extension Cable f/Ram Mic [CT-100]

    $34.28
    $38.58
    $34.28
    23' extension cable for use with RAM MICS* Black Works with CMP25, CMP30, CMP31, SSM-70H mics *This cable is an extension only, and does not include the dash connector Specifications: Type: Cables Box Dimensions: 2"H x 6"W x 9"L WT: 0.8 lbs UPC: 788026089758...
    $34.28
    $38.58
    $34.28
  • Standard Horizon Floating Case f/HX40 - Orange [SHC-29]
    Standard Horizon

    Standard Horizon Floating Case f/HX40 - Orange [SHC-29]

    $22.85
    $28.58
    $22.85
    Floating Case for HX40 - OrangeKeep your VHF afloat with this flotation case Specifications: Type: Covers Box Dimensions: 2"H x 4"W x 8"L WT: 0.1 lbs UPC: 788026165940
    $22.85
    $28.58
    $22.85
  • Vesper Bulkhead Connector Kit f/Cortex H1 [010-13270-00]Vesper Bulkhead Connector Kit f/Cortex H1 [010-13270-00]
    Vesper

    Vesper Bulkhead Connector Kit f/Cortex H1 [010-13270-00]

    $38.57
    $42.86
    $38.57
    Bulkhead Connector Kit for Cortex H1Adding a station for your Cortex H1 is as easy as mounting the bulkhead connector kit and connecting it to 12-24 VDC. Specifications: Type: Misc Box Dimensions: 1"H x 3"W x 4"L WT: 0.05 lbs UPC: 0793618020361
    $38.57
    $42.86
    $38.57
  • Standard Horizon Replacement Speaker Microphone f/Quantum GX6000 VHF/AIS [SSM-76H]
    Standard Horizon

    Standard Horizon Replacement Speaker Microphone f/Quantum GX6000 VHF/AIS [SSM-76H]

    $91.44
    $114.32
    $91.44
    Replacement Speaker Microphone for Quantum GX6000 VHF/AISStandard's Replacement Speaker Microphone specifically for Standard's Quantum GX6000 VHF/AIS.Features: Color: Black Replacement Specifications: Type: Microphones Box Dimensions: 2"H x 5"W x 9"L WT: 0.6 lbs
    $91.44
    $114.32
    $91.44
  • Standard Horizon Mic Hanger [RA0458800]Standard Horizon Mic Hanger [RA0458800]
    Standard Horizon

    Standard Horizon Mic Hanger [RA0458800]

    $0.54
    $0.69
    $0.54
    Mic HangerThis Standard Horizon clip hanger is for all the following Standard Horizon microphones: Quest X- GX1500S Matrix- GX1280S Matrix- GX3000S Quantum- GX2360S Quantum- GX3500S VLH-3000- Loudhailer Specifications: Type: Mounting Brackets Box Dimensions: 1"H x 1"W x 1"L WT: 0.01 lbs UPC: 4909959146820
    $0.54
    $0.69
    $0.54
  • Standard Horizon Intercom Speaker f/VLH-3000A Loud Hailer - Black [MLS-410LH-B]
    Standard Horizon

    Standard Horizon Intercom Speaker f/VLH-3000A Loud Hailer - Black [MLS-410LH-B]

    $91.44
    $114.30
    $91.44
    Intercom Speaker for VLH-3000A Loud Hailer - BlackRedesigned for clear, crisp, and audible reception, the Standard Horizon MLS-410LH Intercom Speaker acts as a secondary speaker/PA for receiving and transmitting, via the Push To Alert (PTA) button, with the VLH-3000A Loud Hailer.  Compatible With:Standard Horizon...
    $91.44
    $114.30
    $91.44
  • Standard Horizon Microphone f/GX14xx GX18xx Series - White [CS2596702]
    Standard Horizon

    Standard Horizon Microphone f/GX14xx GX18xx Series - White [CS2596702]

    $57.15
    $78.52
    $57.15
    Microphone for GX14xx & GX18xx Series - WhiteStandard Horizon's Speaker Microphone specifically for Standard's GX14xx and GX18xx Series.Features:Color: White Specifications: Type: Microphones Box Dimensions: 2"H x 5"W x 8"L WT: 0.6 lbs
    $57.15
    $78.52
    $57.15
  • Icom HM158LA Compact Speaker Mic [HM158LA]
    Icom

    Icom HM158LA Compact Speaker Mic [HM158LA]

    $71.44
    $98.59
    $71.44
    HM158LA Compact Speaker MicThis Icom speaker microphone is for Icom portable radios that accept a 2-pin LA-type screw cap connector. See below for the entire list of Icom-compatible radios.Features: 8-position rotary clip Equipped with earphone jack 2-pin LA-type screw cap connector Specifications: Connector Information:...
    $71.44
    $98.59
    $71.44
  • Standard Horizon USB Charge Cable f/HX300 [T9101606]
    Standard Horizon

    Standard Horizon USB Charge Cable f/HX300 [T9101606]

    $11.42
    $28.51
    $11.42
    USB Charge Cable for HX300USB cable for current Standard Horizon HX300 unit. Specifications: Type: Chargers Box Dimensions: 1"H x 4"W x 5"L WT: 0.3 lbs
    $11.42
    $28.51
    $11.42
  • Standard Horizon Wired Remote Access Microphone RAM4 [SSM-70H]
    Standard Horizon

    Standard Horizon Wired Remote Access Microphone RAM4 [SSM-70H]

    $228.62
    $285.78
    $228.62
    Wired Remote Access Microphone RAM4Standard Horizon's wired remote access microphone RAM4 for Standard's GX1800, GX1800G, GX1850, GX1850G, GX2400, GX6000.Features: Controls all radio functions of the main station radio* Operate up to 2 RAM4 wired remote stations Submersible IPX8 waterproof rating (1.5 M or 4.92...
    $228.62
    $285.78
    $228.62
  • ACR Lithium Battery f/SR203 VHF Radio [1061]
    ACR Electronics

    ACR Lithium Battery f/SR203 VHF Radio [1061]

    $324.37
    $478.64
    $324.37
    Lithium Battery for SR203 VHF Radio Replacement battery.  Recommended for emergency use and not rechargeable.  Up to 16 hours of continuous use. Compatible With:SR203 VHF Survival Radio*Sold as an Individual WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State...
    $324.37
    $478.64
    $324.37
  • Raymarine Ray90 Wireless First Station Kit with Passive Speaker, Wireless Handset Wireless Hub [T70433]
    Raymarine

    Raymarine Ray90 Wireless First Station Kit with Passive Speaker, Wireless Handset Wireless Hub [T70433]

    $971.70
    $1,036.00
    $971.70
    Ray90 Wireless First Station Kit with Passive Speaker, Wireless Handset & Wireless HubModular Dual-Station VHF Radio SystemRaymarine’s fixed mount Ray90 modular VHF radio brings multi-station communications to a whole new level of power, performance, and flexibility. The Ray90 is a black-box design with a...
    $971.70
    $1,036.00
    $971.70