Standard Horizon SSM-517A Earpiece Microphone f/HX270, HX370, HX471 & HX400

Heavy Duty Belt ClipCompatible with the following current models:HX370SHX370SASHX471Also compatible with any past models that used the CLIP-14Features: Use in place of the CLIP-14 when a higher...

SSM-21A Speaker Mic for HX890, HX400, HX400IS, HX380, HX40 & HX210Standard Horizon SSM-21A submersible speaker microphone with heavy-duty belt clip. Compatible with Standard Horizon HX890, HX400,...

Earphone for SSM-14Black, single earbud Manufacturer : Standard Horizon Manufacturer Part No : SEP-10A UPC : 788026144594

Barometric Pressure Sensor Unit for HX471S Manufacturer : Standard Horizon Manufacturer Part No : SU-1 UPC : 788026062546

SBR-45LI 3200mAh Battery for HX400The Standard Horizon SBR-45LI is the replacement battery for Standard Horizon HX400 Series Handheld VHF Marine Radios. Manufacturer : Standard Horizon Manufacturer...