Visor-Mounted Microphone for Hands-Free Mobile-Radio Installations

The Motorola GMMN4065D is a genuine visor-mounted microphone designed for compatible Motorola mobile radios in commercial, fleet and vehicle-based communications systems.

Mounted near the operator on the vehicle’s sun visor, it allows voice audio to be captured without requiring the user to hold a traditional palm microphone.

When combined with a compatible external push-to-talk button or footswitch, the GMMN4065D can support a convenient hands-free-style communications setup for drivers and equipment operators.

Key Features

• Mounts conveniently to a vehicle sun visor

• Allows voice transmission without holding a palm microphone

• Supports compatible external push-to-talk controls

• Supplied with a bare-wire connection for hardwired installation

• Keeps the microphone positioned near the operator

• Helps reduce handheld equipment around the dashboard

• Designed for select Motorola mobile radios

• Genuine Motorola Solutions accessory

Product Specifications

• Manufacturer: Motorola Solutions

• Model Number: GMMN4065D

• Accessory Type: Visor-mounted mobile microphone

• Mounting Location: Vehicle sun visor

• Connection Type: Hardwired bare-wire connection

• Push-to-Talk Control: External control required

• Application: Compatible Motorola mobile radios

• Color: Black

Visor-Mounted Operation

The GMMN4065D mounts near the driver or operator, allowing the microphone to capture speech without being held in the hand.

This configuration can help:

• Keep the operator’s hands available for work

• Reduce clutter around the dashboard

• Eliminate the need to repeatedly pick up a palm microphone

• Maintain a consistent microphone position

• Support customized vehicle communications systems

Push-to-Talk Requirements

The GMMN4065D is the microphone component of the system and does not include an integrated handheld push-to-talk button.

A compatible external PTT accessory may be required, such as:

• Motorola RLN4856 Remote-Mount Footswitch PTT

• Motorola RLN4857 Remote-Mount Push-Button PTT

• Motorola RLN4836 Emergency Footswitch

• Another approved radio-specific PTT control

External PTT accessories are sold separately.

Compatible Radio Models

The GMMN4065D supports compatible Motorola mobile radios, including:

• MOTOTRBO XPR 2500

• MOTOTRBO CM200d

• MOTOTRBO CM300d

• Motorola TLK 150

• Corresponding regional MOTOTRBO models

Motorola specifically identifies the GMMN4065D as the visor-microphone option for the CM300d platform.

Compatibility varies by radio model, connector and installation configuration. Confirm compatibility before ordering.

Hardwired Installation

The microphone is supplied with a bare-wire end and is intended to be integrated into a compatible radio installation.

Professional installation is recommended to ensure:

• Correct wiring and radio interfacing

• Secure visor placement

• Proper cable routing

• Suitable microphone positioning

• Compatibility with the selected external PTT

• Safe operation around airbags and vehicle controls

Important Usage Information

“Hands-free” refers to speaking without holding the microphone. Unless the radio system is specifically configured otherwise, the operator must still activate a compatible external PTT control before transmitting.

Always follow applicable laws and workplace policies regarding radio use while operating a vehicle.

Package Contents

• One Motorola GMMN4065D visor-mounted microphone with bare-wire lead

Mobile radio, external push-to-talk control, speaker and installation hardware are not included unless specifically stated by the seller.

Ideal Applications

• Commercial fleet vehicles

• Utility and service trucks

• Transportation and logistics

• Public-works vehicles

• Construction equipment

• Delivery fleets

• Motorola TLK 150 installations

• Custom mobile-radio systems

Why Buy from Delmarva Communications?

Delmarva Communications provides genuine communications equipment backed by more than 20 years of industry experience. Our team can help confirm radio compatibility and identify the external PTT and installation accessories required for your Motorola system.