Standard HorizonSTD-240SW 240SW 5-Inch x 8-Inch PA Horn Speaker

Standard STD-240SW 240SW 5-Inch x 8-Inch PA Horn Speaker

Standard Horizon VLH3000A Standard Horizon 30 Watt Loud Hailer,Black

Standard STD-MMB-84 Flush Mount Kit for Most Standard Fixed Mount VHF Radios