FNB-57 Battery for STANDARD HORIZON Portable Radios HX270S HX370S HX500S HX600S
HX270S, HX370S, HX500S, HX600S. for STANDARD HORIZON Portable Radios. YAESU for Vertex Standard FNB-V57, FNB-V57H, FNB-64, FNB-64H, FNB-83, STANDARD HORIZON FNB-83. for YAESU / Vertex Standard Aviation Radios.