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Motorola PMMN4135B XVP850 IMPRES Remote Speaker Microphone with Channel Control

The Motorola PMMN4135B XVP850 Remote Speaker Microphone is a rugged, high-performance public-safety microphone designed for select Motorola APX and APX NEXT portable radios. Featuring four-microphone adaptive noise suppression, an exceptionally loud speaker, integrated channel control and an IP68-rated housing, the PMMN4135 helps first responders communicate clearly in extreme noise, severe weather and hazardous work environments.

Unlike conventional single-microphone accessories, the XVP850 uses a four-microphone beam-forming system to distinguish speech from surrounding noise. Motorola’s adaptive audio technology automatically processes incoming voice audio to improve clarity around sirens, engines, crowds, machinery and high winds. IMPRES audio technology allows the microphone and compatible radio to work together for optimized audio performance.

Motorola PMMN4135B Key Features

• XVP850 IMPRES remote speaker microphone
• Four-microphone adaptive noise suppression
• Beam-forming microphone technology
• Integrated channel-control knob
• Loud 47 mm speaker rated at approximately 105 phons
• Windporting technology for improved outdoor communication
• Motorola IMPRES audio technology
• Adaptive Audio Engine support with compatible radios
• Work-When-Wet performance
• IP68 rated for submersion in two meters of water for up to four hours
• Top orange emergency button
• Dedicated volume-up and volume-down controls
• Side push-to-talk button
• Three programmable function buttons
• Dedicated front ViQi button on supported radio systems
• 3.5 mm non-threaded receive-only audio-accessory jack
• Heavy-duty coiled cable
• 360-degree rotating low-profile clip with D-ring
• Intrinsically safe options for qualifying hazardous locations
• Powered directly by the connected radio
• Black housing

PMMN4135B Specifications

Specifications are based on Motorola’s official XVP remote-speaker-microphone datasheet.

Compatible Motorola Radios

The Motorola PMMN4135B is designed for select configurations of the following portable radios:

• Motorola APX 6000
• Motorola APX 6000XE
• Motorola APX 7000
• Motorola APX 7000XE
• Motorola APX 8000
• Motorola APX 8000H
• Motorola APX 8000XE/HXE
• Motorola APX NEXT
• Motorola APX NEXT XE
• Motorola APX N70
• Motorola SRX 2200

Compatibility can depend on the radio’s firmware, connector configuration, programming and regional approval. Some advanced features—particularly Adaptive Audio Engine operation, ViQi integration and programmable controls—may not be available on every radio model or firmware version. Verify the complete radio model and firmware before ordering.

Clear Audio in Extreme Noise

The PMMN4135 is engineered for personnel who must communicate near fire apparatus, emergency vehicles, industrial machinery, construction equipment or large crowds. Its four microphones capture speech from multiple positions while the internal noise-suppression system reduces unwanted background sound.

The large speaker produces strong, intelligible audio without requiring the user to remove the radio from a belt or carrying case. Windporting technology also helps reduce the effect of wind across the microphone opening during outdoor operations.

Integrated Channel and Radio Controls

The XVP850 gives users convenient access to frequently needed radio functions directly from the microphone. The top-mounted channel knob allows channels to be changed without reaching for the portable radio. Separate volume controls, an orange emergency button, side PTT and programmable buttons support efficient one-handed operation.

A front programmable button can support Motorola ViQi voice control when used with an appropriately configured radio and system.

Built for Severe Environments

With an IP68 environmental rating, the PMMN4135B can withstand dust, heavy rain and submersion in up to two meters of water for as long as four hours under Motorola’s specified test conditions. Its Work-When-Wet capability allows the microphone to continue operating after exposure to water.

The microphone is also tested against applicable MIL-STD-810H procedures for rain, salt fog, dust, vibration and shock. These protections make it suitable for law enforcement, fire and rescue, emergency medical services, utilities, industrial operations and other demanding applications.

Hazardous-Location Capability

The PMMN4135 XVP850 family is available with hazardous-location approvals for qualifying environments. Motorola lists protection for specified Class I, II and III locations under applicable Division 1 and Division 2 classifications.

HazLoc safety applies only when the microphone is used as part of an approved radio, battery and accessory configuration. Always verify the exact microphone suffix and the certifications printed on the product before using it in a potentially hazardous atmosphere.

Alternative Motorola Speaker Microphones

PMMN4135 vs. PMMN4136

Choose the PMMN4135 XVP850 when users need a channel-selection knob on the microphone. Select the PMMN4136 XVP830 when channel changes will be made on the radio but hazardous-location capability and premium XVP audio are still required.

PMMN4135 vs. PMMN4141

The PMMN4141 XVP750 is the closest alternative for users who want XVP audio and a channel knob but do not require the applicable HazLoc certification. The PMMN4135 is the better choice for agencies requiring an approved intrinsically safe configuration.

PMMN4135 vs. PMMN4142

The PMMN4142 XVP730 offers four-microphone noise suppression and IP68 durability but eliminates both the channel knob and HazLoc positioning. It is a practical alternative when simpler controls meet the application.

Optional Earpiece and Replacement Parts

The following accessories and service parts may be available for the PMMN4135:

• PMLN8120: 3.5 mm extra-loud receive-only earpiece with translucent acoustic tube
• PMLN8312: Low-profile swivel clip with D-ring
• PMLN8313: Replacement channel knob
• PMKN4260: Replacement coiled cord

Verify the current revision and packaging quantity before ordering replacement components.

Comparing Motorola APX speaker microphones? Read our Motorola APX speaker microphone guide to check radio compatibility, controls and alternative models before ordering.

Why Buy the Motorola PMMN4135B?

The PMMN4135B is an excellent choice for departments that need dependable audio, glove-friendly controls and extreme environmental protection. It combines advanced voice processing with rugged construction and direct access to channel, emergency and programmable radio functions.

For firefighters, police officers, emergency-response teams and industrial personnel, the Motorola XVP850 can provide clearer communication when background noise, severe weather and protective clothing make ordinary speaker microphones difficult to use.

Frequently Asked Questions

What is the Motorola PMMN4135B?

The PMMN4135B is Motorola’s XVP850 IMPRES remote speaker microphone. It includes four-microphone noise suppression, a loud speaker, IP68 protection, programmable controls and a channel-selection knob.

Is the PMMN4135B waterproof?

It is IP68 rated and tested for submersion in two meters of water for up to four hours under Motorola’s specified conditions. It also supports Work-When-Wet operation.

Does the PMMN4135B have a channel knob?

Yes. The integrated channel-control knob is one of the primary differences between the XVP850 PMMN4135 and the XVP830 PMMN4136.

Can an earpiece be connected to the PMMN4135B?

Yes. The microphone has a 3.5 mm non-threaded accessory jack designed for compatible receive-only audio accessories such as the PMLN8120.

Is the PMMN4135B intrinsically safe?

Certain PMMN4135 configurations carry hazardous-location approvals. The microphone must be combined with an approved radio and battery, and the exact model label should be checked before HazLoc use.

Will the PMMN4135 work with every APX radio?

No. Compatibility and available features vary by APX model, firmware and programming. Confirm the exact radio model and software version before purchasing.