Motorola GMMN4065C TETRA Visor Microphone | Transmit Only
If you are setting up a hands-free communication system in your vehicle, the Motorola GMMN4065C TETRA Visor Microphone is an essential component. Designed specifically for Motorola TETRA mobile radios, this discreet microphone mounts easily to your vehicle's sun visor, allowing you to transmit clear audio while keeping your hands safely on the wheel and your focus on the road ahead.
How does the GMMN4065C visor microphone work?
This unit is designed strictly as a transmit-only microphone. It captures your voice clearly from the visor position, ensuring your team hears you without interference. Because it is a dedicated audio-capture device, it does not feature a built-in Push-To-Talk (PTT) button or volume controls. To initiate transmissions, you will need to pair it with a separate PTT solution, such as a steering wheel button or a foot switch.
Which Motorola radios are compatible with this microphone?
The GMMN4065C is built for seamless integration with Motorola's professional TETRA mobile radio series. It is fully compatible with the Motorola MTM5400, MTM5500, MTM800e, MTH800, and MTM700 models. Additionally, if you are upgrading an older vehicle setup, this model serves as the direct, official replacement for all previous versions of the GMMN4065 visor microphone.
What are the technical specifications?
Here is a quick breakdown of the technical details for the GMMN4065C:
- Operation: Transmit only
- Push-To-Talk (PTT): No
- Volume Control: No
- Weight: 0.75 kg
- Compatibility Note: Replaces all previous GMMN4065 versions