1. 3.5mm thread socket avoid taking off microphone from adapter easily when you move around.
Available for：
MOTOROLA
PRO 7150 Elite, PRO9150 Elite, EX600, EX600 XLS ,
EX500, GL2000, GP344, GP388, GP644, GP688, GP328 Plus, GP338 Plus etc.
(Same functionality as MOTOROLA： PMLN 4455B / MDPMLN 4455 )
Warning：The radio must be turned off when attaching the adapter to the connector. Failure to do may damage the radio. The condition can be corrected by turning the radio off/on again.
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