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

SSM-517A Earpiece Microphone for HX270, HX370, HX471 & HX400

The Standard Horizon SSM-517A Earpiece Microphone is compatible with HX270, HX370, HX471, and HX400.