EVX261 EVX531 EVX534 EVX539 VX231 VX261 VX264 VX350 VX354 VX351 VX454 VX459. Shoulder Speaker Microphone Fit for Vertex Standard Radio VX350 VX354 VX351. The shoulder speaker microphone allows you to talk and listen without having to move a radio so makes the use of the walkie-talkie more convenient.
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