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SSM-517A Earpiece Microphone for HX270, HX370, HX471 & HX400
The Standard Horizon SSM-517A Earpiece Microphone is compatible with HX270, HX370, HX471, and HX400.
![Standard Horizon SSM-517A Earpiece Microphone f/HX270, HX370, HX471 HX400 [SSM-517A] - Essenbay Marine](http://essenbaymarine.com/cdn/shop/products/91439XL_{width}x.jpg?v=1680060454)
![Standard Horizon SSM-517A Earpiece Microphone f/HX270, HX370, HX471 HX400 [SSM-517A] - Essenbay Marine](http://essenbaymarine.com/cdn/shop/products/91439XL_1024x.jpg?v=1680060454)