The Motorola RM780 IMPRES Remote Speaker Microphone (RSM) is a professional-grade speaker microphone built for demanding two-way radio environments. Highlights include windporting Technology and iP68 Submersible Durability.
Key Features
- Windporting Technology: Reduces howling wind noise in harsh weather and drains water instantly so voice audio remains clear after immersion.
- IP68 Submersible Durability: Certified dust-tight and submersible in up to 6 feet (2 meters) of water for 2 hours, ensuring “Work-When-Wet” field reliability.
- Large Glove-Friendly Housing: Ergonomically shaped with heavy textured grips to allow effortless operation while wearing thick work or fire gloves.
- Low-Profile Swivel Clip: Heavy-duty 360-degree rotating clothing clip keeps the microphone flush against your body to reduce snagging hazards.
- 3.5mm Earpiece Audio Port: Integrated 3.5mm non-threaded side jack allows quick attachment of secondary receive-only earpieces for discrete channel monitoring.
- Integrated Radio Controls: Prominent orange emergency button and programmable shortcut buttons allow rapid tactical responses directly from the mic.
Specifications
| Feature / Attribute | PMMN4128B | PMMN4177A |
| Marketing Name | RM780 IMPRES RSM (HAZLOC / Modern Side) | RM780 IMPRES RSM (GCAI Mini) |
| Connector Type | Modern Side Accessory Interface | GCAI Mini Connector |
| Intrinsic Safety (HazLoc) | TIA4950 (UL) Certified | Standard (Non-HazLoc) |
| IP Rating | IP68 Submersible (2m / 2h) | IP68 Submersible (2m / 2h) |
| Audio Jack | 3.5mm Non-Threaded | 3.5mm Non-Threaded |
| Volume Control | Top Volume Rocker Toggle | Radio Controlled / Integrated |
| Emergency & Programmable Buttons | Yes (Emergency + 2 Prog) | Yes (Emergency + Programmable) |
| Product Family | RM780 IMPRES Remote Speaker Microphone |
| Audio Technology | IMPRES & Windporting |
| Ingress Protection | IP68 Submersible (6 ft / 2 m for 2 hours) |
| Mounting Clip | Low-Profile 360-Degree Swivel Clip |
Compatibility: engineered to work with APXN30, APXN50, APXN70, MXP600, MXP660, MXP7000 and other compatible radio models.
Browse the full speaker mics collection for more compatible options. Order online for fast wholesale shipping, or request a bulk quote for volume pricing on large fleet orders.
