MH-45B4B Heavy Duty Noise Cancelling Speaker Microphone
Heavy Duty Build • Noise Cancelling Mic • Intrinsically Safe Rated • Vertex Standard VX & EVX
The MH-45B4B Heavy Duty Noise Cancelling Speaker Microphone is a rugged remote speaker mic built to endure harsh environments and extreme use, with an upgraded noise cancelling microphone element for clear audio in loud surroundings. It is the right accessory for crews running Vertex Standard VX-series and EVX-series portable radios who need lapel-mounted push-to-talk that holds up on demanding job sites — a hard-working add-on for your commercial two-way radios.
Who It's For
Built for security, industrial, and field teams who run Vertex Standard VX or EVX portables in tough, high-noise conditions. The MH-45B4B is intrinsically safe rated when used with the ISVX-450 and ISEVX-534 Series — not sure it fits your radio? Call our Canadian radio experts at 1-800-984-1534 or contact us to confirm compatibility.
Key Features
Noise Cancelling Mic
An upgraded noise cancelling microphone element delivers optimal sound quality and clearer transmissions in loud, busy environments.
Heavy Duty Build
Built to endure the environment and extreme use, the MH-45B4B is made to take a beating on demanding job sites shift after shift.
Intrinsically Safe Rated
Intrinsically safe when paired with the ISVX-450 and ISEVX-534 Series — suited to hazardous-location work where spark-free gear is required.
Hands-Free PTT
Clip the speaker mic to your lapel and key up without unholstering the radio — faster, safer communication when your hands are full.
Compatible Radios
The MH-45B4B Heavy Duty Noise Cancelling Speaker Microphone is compatible with a wide range of Vertex Standard VX and EVX portable two-way radios, including the VX-231, VX-261, VX-264, VX-351, VX-354, VX-414, VX-417, VX-424, VX-427, VX-451, VX-454, VX-459, ISVX-451, ISVX-454, ISVX-459, EVX-261, EVX-531, EVX-534, EVX-539, ISEVX-531, ISEVX-534, and ISEVX-539. It is intrinsically safe when used with the ISVX-450 and ISEVX-534 Series.
Not sure whether the MH-45B4B matches your specific radio model? Browse our full range of commercial two-way radios and business two-way radios, or contact our team and we'll confirm the right speaker mic for your fleet.
Frequently Asked Questions About the MH-45B4B Speaker Microphone
• What radios is the MH-45B4B speaker microphone compatible with?
The MH-45B4B is compatible with Vertex Standard VX and EVX portable radios, including the VX-231, VX-261, VX-264, VX-351, VX-354, VX-414, VX-417, VX-424, VX-427, VX-451, VX-454, VX-459, ISVX-451, ISVX-454, ISVX-459, EVX-261, EVX-531, EVX-534, EVX-539, ISEVX-531, ISEVX-534, and ISEVX-539. If you don't see your model, contact us to confirm.
• Is the MH-45B4B intrinsically safe?
Yes. The MH-45B4B is intrinsically safe when used with the ISVX-450 and ISEVX-534 Series radios, making it suitable for hazardous-location work where intrinsically safe equipment is required.
• Does the MH-45B4B reduce background noise?
Yes. The MH-45B4B features an upgraded noise cancelling microphone element designed to deliver optimal sound quality, which helps cut through background noise in loud, busy work environments.
• Is the MH-45B4B durable enough for tough job sites?
Yes. The MH-45B4B is a heavy duty speaker microphone built to endure the environment and extreme use, making it a reliable choice for demanding industrial, security, and field applications.
• How do I confirm the MH-45B4B fits my radio?
If your radio model isn't listed, our Canadian radio experts can confirm compatibility for you. Call 1-800-984-1534 or reach out through our contact page for help selecting the right speaker mic.
