Part Number: 11AZZ11S4 (S8). ICOM IC-F31GS, F31GT, F41GS, F41GT, F3162S, F3162T, F4162S, F4162T, F51, F61. Earpiece Shape: Covert – Acoustic Tube. Surveillance One Wire Earpiece with Acoustic Tube. Mic & PTT: No, Listen only.
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