Motorola PMMN4128 PMMN4128A PMMN4128B RM780 IMPRES Remote Speaker Microphone
The Motorola PMMN4128 RM780 is a large IMPRES wired remote speaker microphone for compatible Motorola professional and mission-critical portable radios. It combines loud 102 dB phon audio, Windporting, IP68 protection and Work-When-Wet performance with convenient radio controls for demanding field communication.
- Product Type: Wired Remote Speaker Microphone (RSM)
- Part Numbers: PMMN4128 / PMMN4128A / PMMN4128B
- Model: RM780
- Audio: IMPRES, 102 dB phon speaker, Windporting
- Protection: IP68 and Work-When-Wet
- Audio Jack: 3.5 mm
- MOQ: 1 piece
Motorola PMMN4128 RM780 IMPRES Remote Speaker Microphone
The Motorola PMMN4128 RM780 is a large IMPRES wired remote speaker microphone designed for compatible Motorola professional and mission-critical portable radios. It allows users to communicate directly through the RSM while keeping the radio securely attached to a belt, vest or carrying case.
The RM780 combines a loud 102 dB phon speaker with an omnidirectional Windporting microphone for clear communication in demanding environments. Its IP68-rated housing and Motorola Work-When-Wet design provide reliable audio performance in rain, wet conditions and other challenging work environments.
Integrated controls include a large glove-friendly PTT button, emergency button, volume up/down control and two programmable buttons. A 3.5 mm audio jack also supports compatible receive-only earpieces for more discreet listening.
Specifications
| Brand | Motorola Solutions |
| Part Number | PMMN4128 / PMMN4128A / PMMN4128B |
| Model | RM780 |
| Product Type | Wired Remote Speaker Microphone (RSM) |
| IMPRES Audio | Yes |
| Microphone Type | Omnidirectional |
| Windporting | Yes |
| Speaker Loudness | Up to 102 dB phon |
| IP Rating | IP68 |
| Work-When-Wet | Yes |
| Emergency Button | Yes |
| Programmable Buttons | 2 |
| Volume Control | Yes |
| Audio Jack | 3.5 mm |
| Clip | Low-Profile 360° Rotating Clip |
| Dimensions | Approx. 77 × 58 × 25 mm, RSM head without clip |
| Weight | Approx. 212 g, complete kit with cable |
Compatible Motorola Radios
MOTOTRBO: MOTOTRBO R7, MOTOTRBO Ion.
APX / P25: APX N30, APX N50.
TETRA: MXP600, MXP7000.
Compatibility and hazardous-location approval can depend on the exact radio model, radio firmware and PMMN4128 suffix/configuration. Please provide the exact radio model when ordering if compatibility or UL/HazLoc certification confirmation is required.
Ordering Information
We supply Motorola remote speaker microphones for radio dealers, distributors, system integrators, public-safety users and other B2B buyers. Original Motorola products and compatible replacement options can be quoted according to availability and purchasing requirements.
- MOQ: 1 pc
- Payment: T/T and Credit Card
- Trade Terms: EXW, FOB, FCA, DAP and DDP
- Delivery: Typically 4–7 business days for available stock by international express
- Freight Forwarder: Delivery to your appointed freight forwarder in China is available
FAQ
What is the MOQ for the Motorola PMMN4128 RM780?
The MOQ is 1 pc, so buyers can order a single microphone for replacement, testing or project evaluation.
Can you confirm compatibility before ordering?
Yes. Please provide the exact Motorola radio model and, where applicable, the required PMMN4128 suffix so we can confirm compatibility and certification requirements before shipment.
How long does international delivery normally take?
For available stock, international express delivery normally takes around 4–7 business days after shipment. The actual lead time will be confirmed before ordering.
What happens if there is a quality problem?
For a confirmed product quality issue, we can arrange a replacement shipment or refund according to the order situation.
