
Motorola GMSN4066A 13W External Speaker
If you are operating a mobile two-way radio in a loud vehicle or a noisy industrial setting, standard audio output might not be enough. The Motorola GMSN4066A 13W External Speaker is specifically engineered to cut through heavy background noise, ensuring your team hears every critical message loud and clear.
Why do I need the Motorola GMSN4066A external speaker?
For professionals working in high-noise environments like construction sites, manufacturing plants, or busy transport hubs, missing a radio call isn't an option. This 13-watt speaker provides a significant boost in volume, compensating for loud machinery or engine noise so you can maintain seamless and safe communication.
Which radios are compatible with this speaker?
This external speaker is designed to integrate perfectly with a wide range of Motorola mobile radios. It is fully compatible with models including the Motorola DM4601, DM4600, MTM5400, MTM5500, MTM800e, MTH800, MTM700, MTP850, MTP6650, and MXP600.
What are the technical specifications?
Built for durability and performance, here are the core specifications for the GMSN4066A:
- Part Number: GMSN4066A
- Power Output: 13W
- Weight: 0.75 kg
- Design: Heavy-duty external speaker for high-noise environments
How can I complete my mobile radio setup?
To build a comprehensive base station or mobile setup, you might also want to consider pairing your radio with the Motorola Mobile Desktop Tray and ensuring reliable power with the Motorola Mobile Radio Power Supply Unit.

