MH-101A4B One Wire Surveillance Kit w/ inline PTT
MH-101A4B One Wire Surveillance Kit: discreet earpiece with inline PTT for VX Series radios Type: One-wire surveillance-style headset · PTT: Inline push-to-talk · Connector: Single-pin (VX Series) ...
MH-101A4B One Wire Surveillance Kit: discreet earpiece with inline PTT for VX Series radios
Type: One-wire surveillance-style headset · PTT: Inline push-to-talk · Connector: Single-pin (VX Series) · Fits: VX-261, VX-264, VX-451, VX-454 and IS models
The MH-101A4B is a one-wire surveillance-style headset with an inline push-to-talk (PTT) control built into the cable, made for VX Series two way radios with a single-pin connector. It keeps a low profile for discreet, audio-clear communication where a hidden earpiece is preferred.
Who it's for
This kit suits security, event staff, retail, and crews who need clear audio without an obvious headset. If your radio is a single-pin VX Series model, the MH-101A4B is built to connect and operate with an easy inline PTT on the cable.
Key features
- One-wire design: a single discreet cable for a clean, low-profile look.
- Inline PTT: push-to-talk control built into the cable for quick keying.
- Surveillance-style earpiece: hidden audio for discreet use.
- Single-pin connector: designed for VX Series radios with a single-pin port.
- Broad VX fit: works across multiple VX-261/264/451/454 and IS models.
Specifications
| Model | MH-101A4B |
|---|---|
| Type | One wire surveillance-style headset / earpiece |
| PTT | Inline push-to-talk |
| Connector | Single-pin (VX Series) |
| Listed compatible radios | VX-261, VX-264, VX-451, VX-454, ISVX-451, ISVX-454, ISVX-459, ISEVX-534 |
Frequently Asked Questions
What radios does the MH-101A4B fit?
The MH-101A4B is made for VX Series two way radios with a single-pin connector. The models listed for this kit are VX-261, VX-264, VX-451, VX-454, ISVX-451, ISVX-454, ISVX-459 and ISEVX-534. If your radio isn't listed, contact us to confirm compatibility.
What is a 1-wire surveillance kit?
A one-wire surveillance kit is a single-cable earpiece accessory styled for discreet use. The MH-101A4B uses one wire and includes an inline push-to-talk (PTT) control on the cable.
Does the MH-101A4B include an inline PTT?
Yes. The MH-101A4B is a one-wire surveillance kit with an inline push-to-talk (PTT) control built into the cable.
How do I confirm the MH-101A4B works with my radio?
The MH-101A4B connects to VX Series radios with a single-pin connector. Check that your radio matches one of the listed models, and contact us if you'd like us to confirm fit before you order.
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
- Free shipping over $125 · on qualifying U.S. orders
- Calculated at checkout · many items ship at weight-based rates
- Delivery estimate at checkout · based on item availability & method
- Ships across the U.S. · some products have shipping restrictions
Returns & warranty
- 15-day returns · most new, unopened items for a full refund
- Return shipping covered · if the item arrived incorrect or defective
- Refunds · typically within ~2 weeks of us receiving your return
- Manufacturer warranty · per the manufacturer’s terms
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