Description
Compact Windporting Remote Speaker Microphone with 3.5mm Jack
Small-footprint IP55 rated remote speaker microphone with 101 phon loud speaker output for MOTOTRBO R2 and CP series radios.
The Motorola PMMN4148A (RM110) is a compact, lightweight remote speaker microphone engineered for everyday commercial and industrial two-way radio users. Built with a small-footprint casing weighing just 112 grams, this RSM delivers high-clarity communications without adding unnecessary bulk to uniform lapels or tactical vests.
Featuring windporting technology, the Motorola PMMN4148A eliminates severe wind noise and prevents water from clogging the microphone element during heavy rain or outdoor operations. An integrated 101 phon speaker provides powerful, intelligible audio in noisy work environments, while a non-threaded 3.5mm audio jack allows users to attach optional receive-only earpieces for private listening. The Motorola PMMN4148A is the updated version of the Motorola PMMN4148.
Key Features & Benefits
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101 Phon Loud Audio Speaker: High-output internal speaker delivers crisp, intelligible voice transmissions across high-noise commercial job sites.
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Windporting Noise Reduction: Specialized windporting technology dampens howling wind noise and prevents water accumulation over the microphone element.
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3.5mm Audio Earpiece Jack: Integrated non-threaded 3.5mm audio port enables quick attachment of receive-only earpieces for discreet communications.
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IP55 Weather Protection: Dust-protected and water-resistant enclosure (RSM head only) safeguards hardware against rain and environmental exposure.
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Low-Profile Swivel Clip: Heavy-duty 360-degree rotating clothing clip attaches securely to shirts, jackets, or shoulder harnesses.
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Motorola Revision Disclosure: The Motorola PMMN4148A is the updated version of the Motorola PMMN4148.
Specifications
| Attribute |
Details |
| Brand |
Motorola Solutions |
| Model/SKU |
PMMN4148A (Replaces PMMN4148) |
| Product Line |
RM110 Series RSM |
| Audio Output |
101 Phon Speaker Output |
| Audio Jack |
3.5mm Non-Threaded |
| Microphone Type |
Windporting |
| Ingress Protection |
IP55 Rated (RSM Head Only) |
| Intrinsic Safety |
No Rating |
| Programmable Button |
No |
| Volume Control |
No |
| Dimensions |
2.32 Inches W x 1.18 Inches H x 2.99 Inches L (59 mm W x 30 mm H x 76 mm L) |
| Weight |
112 Grams |
Compatibility
What's Included
| Description |
SKU/Model |
Status |
| Motorola RM110 Remote Speaker Microphone |
PMMN4148A |
Included |
| Low-Profile Swivel Clothing Clip |
Integrated |
Included |
Recommended Accessories
Compatible Radios
Earpieces & Audio Accessories
More Resources
Frequently Asked Questions
Does the Motorola PMMN4148A include an emergency button or volume control?
No, the Motorola PMMN4148A (RM110) is a streamlined remote speaker microphone that does not feature an emergency button or volume control knob.
Is the Motorola PMMN4148A the same as the PMMN4148?
Yes, the Motorola PMMN4148A is the updated manufacturer revision version of the Motorola PMMN4148 and provides identical electrical and mechanical fitment.
What is the IP weather rating of the Motorola PMMN4148A?
The Motorola PMMN4148A features an IP55 rating for the RSM head, providing reliable protection against dust ingress and low-pressure water spray.
Can I connect a private earpiece to the Motorola PMMN4148A?
Yes, the Motorola PMMN4148A includes a non-threaded 3.5mm audio jack on the microphone head, allowing you to attach receive-only earpieces such as the Motorola PMLN8120A or PMLN4620B.
How does windporting technology work on the RM110?
Windporting technology eliminates whining and howling sounds caused by wind blowing across the microphone and prevents water from clogging the port, ensuring clear audio transmission during severe weather.
Is the Motorola PMMN4148A an authentic Motorola OEM part?
Yes, the Motorola PMMN4148A is a genuine original equipment manufacturer accessory produced directly by Motorola Solutions.
Warranty
1-year manufacturer's warranty.
