MH-45B4B Heavy Duty Noise Cancelling Speaker Mic
Motorola MH‑45B4B Heavy Duty Noise‑Cancelling Speaker Microphone The MH‑45B4B (Motorola part # A13960507) is a rugged, intrinsically safe speaker mic designed for VE and VX/EVX two‑way radio serie...
Motorola MH‑45B4B Heavy Duty Noise‑Cancelling Speaker Microphone
The MH‑45B4B (Motorola part # A13960507) is a rugged, intrinsically safe speaker mic designed for VE and VX/EVX two‑way radio series. Equipped with noise‑cancelling audio and a durable construction, it delivers clear communications in extreme environments.
🔧 Key Features
- Heavy‑Duty Construction: Built to withstand drops and frequent use; ideal for high-impact settings
- Noise‑Cancelling Microphone: Filters background noise for crisp voice clarity in loud surroundings
- Large PTT & Volume Control: Easy to use with gloves and loudspeaker volume adjustability
- 3.5 mm Earphone Jack: Supports optional earpiece for private listening
- Intrinsically Safe Rated: Certified for use with IS-rated radios like ISVX‑410/421 and ISEVX‑534/539
- Wide Compatibility: Works with Motorola VX- and EVX-series and Vertex Standard models
📦 What’s Included
- MH‑45B4B speaker microphone
- Coiled cord with quick-disconnect
- Swivel clothing clip and belt clip
⚙️ Specifications
| Mic Impedance | 2.2 kΩ @ 1 kHz |
|---|---|
| Speaker Impedance | 8 Ω, max 0.6 W input |
| Weight | ≈220 g (0.49 lb) |
| Connector | Motorola 2-pin + 3.5 mm earjack |
| Certifications | Intrinsically safe (FM/ATEX) with IS radios |
| Warranty | One-year replacement |
✅ Why Choose MH‑45B4B?
Trusted by firefighters, security teams, and industrial operators, this mic offers rugged dependability, clear communications, and safety-rated assurance—even with gloves on and engines running. An essential accessory for mission-critical environments
Equip your field team with the Motorola MH‑45B4B — heavy-duty, noise-cancelling, IC-safe performance you can count on.
Detailed specifications are coming soon. In the meantime, here's the basics:
| Brand | 2Way Radio Solutions |
| Product Type | Accessories |
| SKU | — |
Full spec sheet: contact us at 1-800-507-6002
Shipping
- Standard (free over $125) · 2–5 business days · UPS Ground or USPS Priority
- Express · 1–2 business days · UPS 2-Day · $24.99
- Overnight · Next business day · UPS Next-Day Air · from $49.99
- Multi-location drop-ship · Free for orders 12+ units to up to 6 addresses
Returns & warranty
- 30-day returns · Open-box accepted · free return shipping
- Manufacturer warranty · We file all warranty claims on your behalf
- Optional 3-year accidental damage · +$49/unit · drops, water, theft
- Fleet swap program · Replacement shipped same day for fleets of 8+
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