Standard Horizon Speaker/Mic most handheld VHFs New Condition. Specifications for Standard Horizon Speaker/Mic most handheld VHFs: Manufacturer: Standard Horizon Color: Black Features of Standard Horizon Speaker/Mic most handheld VHFs: Speaker microphone Standard Horizon Part Number MH-73A4B For HX751 HX851 HX370S HX471S HX760S and older handheld VHFs Included Accessories: handset Documentation Package Contents: Standard Horizon Speaker/Mic most handheld VHFs Standard Horizon MH-73A4B: Speaker/Mic most handheld VHFs New Condition