- Model Number: PMMN4021
- Item Type: Speaker
- Origin: Mainland China
Product Overview
The PMMN4021 speaker microphone is compatible with Motorola GP340, GP328, GP338 and HT1250 radios, adding remote audio for belt-worn use.
Compatibility
Motorola GP340 / GP328 / GP338 / HT1250 radios.
Typical Use Cases
Legacy Motorola fleets use PMMN4021 mics to extend the life of existing radios.
Frequently Asked Questions
Can I use this microphone with the radio on my belt?
Yes. The microphone connects to the radio audio jack while the radio stays on the belt or in a holder, keeping the PTT within easy reach.
Does it work with a headset?
It connects directly to the radio; for headset use, select the matching headset accessory for your radio model.
Which connector fits my radio?
Each earpiece and speaker mic lists its connector (e.g. Motorola M6/M7, Kenwood 2-pin). Match it to your radio series before ordering.
Acoustic tube or wire earpiece?
Acoustic tubes give discreet, clear audio for security work; straight-wire models are more durable in heavy industrial use.
Are these suitable for loud environments?
Yes — heavy-duty speaker mics and headsets with noise-canceling boom mics are built for construction sites and industrial noise.
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