Motorola RM760 (PMMN4140) Speaker Microphone

The Motorola RM760 (PMMN4140) IMPRES™ Windporting Remote Speaker Microphone is a rugged, high-performance communication accessory built for professionals who operate in demanding environments. Designed with a large form factor and Motorola’s advanced IMPRES™ audio technology, it delivers clear, loud audio even in noisy, wet, or windy conditions. The windporting microphone reduces background noise while preventing water from clogging the mic, ensuring your voice is heard when it matters most.

This RSM is IP68-rated for dust and water resistance and features a low-profile swivel clip for secure, comfortable wear. It includes a 3.5mm audio jack for discreet listening with a receive-only earpiece and is UL TIA-4950 certified for use in hazardous locations. Whether you’re in public safety, utilities, or industrial operations, the RM760 is engineered to perform reliably in the toughest conditions.

🔧 Features

• IMPRES™ audio for superior voice clarity
• Windporting technology minimizes wind and weather noise
• IP68-rated: submersible up to 2 meters for 4 hours
• Large form factor with ergonomic design
• Low-profile swivel clip for secure attachment
• 3.5mm audio jack for receive-only earpiece
• UL TIA-4950 certified for hazardous environments
• “Work-When-Wet” design drains water for uninterrupted communication

📻 Compatible Motorola Radios

• MOTOTRBO R7 / R7a
• MOTOTRBO Ion
• APX N30
• APX N50
• APX N70
• MXP600
• MXP660

Specification

• Model: PMMN4140
• Dimensions: 3.35 in (H) × 2.40 in (L) × 1.02 in (W)
• Weight: 0.46 lbs
• Audio Jack: 3.5mm (non-threaded)
• Microphone Type: Omni-directional windporting
• Operating Temperature: -4°F to +140°F (-20°C to +60°C)
• Color: Black
• IP Rating: IP68
• HazLoc Certification: UL TIA-4950