![Standard Horizon SSM-517A Earpiece Microphone f/HX270, HX370, HX471 HX400 [SSM-517A]](http://petersonmarineinc.com/cdn/shop/files/91439XL_1200x.jpg?v=1711060503)
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![Standard Horizon SSM-517A Earpiece Microphone f/HX270, HX370, HX471 HX400 [SSM-517A]](http://petersonmarineinc.com/cdn/shop/files/91439XL_medium.jpg?v=1711060503)
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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.
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