FBI Earpiece mic for Standard Horizon HX290 HX370 HX400 HX300 HX851 HX470S VX-7R
HX460s HX470s HX471s. HX850s HX851 HX870. HX370s HX380 HX290. HX400 HX407. clear tube earpiece for Standard Horizon radio. earpiece with microphone. 1x earpiece. compatible SSM-55A VC-27 with work for Standard Horizon radio.