---
product_id: 50720450
title: "Yaesu Vertex/Standard Horizon CT-91 Speaker Microphone Adapter"
brand: "yaesu vertex"
price: "€ 55.63"
currency: EUR
in_stock: true
category: "Yaesu Vertex"
url: https://www.desertcart.com.cy/products/50720450-yaesu-vertex-standard-horizon-ct-91-speaker-microphone-adapter
store_origin: CY
region: Cyprus
---

# Waterproof design 4-pin AUX connector Dual speaker & mic jack adapter Yaesu Vertex/Standard Horizon CT-91 Speaker Microphone Adapter

**Brand:** yaesu vertex
**Price:** € 55.63
**Availability:** ✅ In Stock

## Summary

> 🎧 Stay connected, rain or shine—upgrade your radio game with CT-91!

## Quick Answers

- **What is this?** Yaesu Vertex/Standard Horizon CT-91 Speaker Microphone Adapter by yaesu vertex
- **How much does it cost?** € 55.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/50720450-yaesu-vertex-standard-horizon-ct-91-speaker-microphone-adapter)

## Best For

- yaesu vertex enthusiasts

## Why This Product

- Trusted yaesu vertex brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Pros:** Highly rated with 5-star reviews, this adapter is the go-to choice for serious radio users.
- • **Plug & Play Simplicity:** Male-to-female AUX connector ensures quick, hassle-free setup—get back to what matters faster.
- • **Rugged Waterproof Build:** Engineered to withstand outdoor conditions, keeping your communication crystal clear rain or shine.
- • **Broad Radio Compatibility:** Works flawlessly with top Yaesu, Vertex, Standard, and Alinco handheld radios—never worry about fit.
- • **Seamless Dual Jack Conversion:** Transforms single speakermic jack into separate speaker and mic ports for ultimate flexibility.

## Overview

The Yaesu Vertex/Standard Horizon CT-91 Speaker Microphone Adapter converts a single speakermic jack into separate speaker and microphone jacks, compatible with a wide range of handheld radios including Yaesu VX and Standard models. Featuring a rugged, waterproof design and a 4-pin AUX male-to-female connector, it ensures reliable outdoor communication with easy plug-and-play installation.

## Description

Speakermic jack adapter for select Yaesu/Vertex/Standard handheld waterproof radio models listed.Also works for Alinco DJ-G7T, DJ-V17T/27/47T.

## Features

- Adapts single Speakermic jack into seperate speaker & mic jacks.
- Fits Yaesu VX-7R, VX-6R, FT-270R, FT-277R, VX-170, VX-177, VXA-710, VXA-330
- Fits Standard HX-500S, HX-600, HX-370, HX-471, HX-270
- Fits Radios Compatible with CMP-460A, MH-57A4B & MH-73 Speakermikes

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0049GXLDY |
| Brand | Yaesu Vertex |
| Cable Type | AUX |
| Cable type | AUX |
| Colour | Black |
| Compatible Devices | Radio |
| Compatible devices | Radio |
| Connector Gender | Male-to-Female |
| Connector Type | Auxiliary |
| Connector type | Auxiliary |
| Customer Package Type | sealed anti-static bag or coiled in protective tubing |
| Customer Reviews | 5.0 out of 5 stars 4 Reviews |
| Indoor Outdoor Usage | Outdoor |
| Item Shape | Round |
| Manufacturer | Yaesu Vertex Standard |
| Model Name | Horizon CT 91 |
| Model Number | CT-91 |
| Number of Items | 1 |
| Number of Pins | 4 |
| Other Special Features of the Product | Waterproof |
| Outer Material | Other |
| Recommended Uses For Product | Radio |
| Recommended uses for product | Radio |
| Special feature | Waterproof |
| Specification Met | UL |
| UPC | 788026085279 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Yaesu Vertex
- **Cable type:** AUX
- **Compatible devices:** Radio
- **Special feature:** Waterproof
- **Recommended uses for product:** Radio

## Images

![Yaesu Vertex/Standard Horizon CT-91 Speaker Microphone Adapter - Image 1](https://m.media-amazon.com/images/I/41kZqo6CBSL.jpg)

## Questions & Answers

**Q: can this be used to connect an external speaker while in the car?**
A: Yes, it separates the single speakermike jack of compatible models, into separate speaker and mic jacks.

**Q: Will it work on standard horizon hx400is?**
A: It should.  It appears the adapter plug and the plug on the HX400is hand microphone are the same.

**Q: Is this compatible to connect my yaesu FT-270R to kenwood/baofeng 2 pin connectors on speaker/mics and headsets?**
A: Yes, some 2-pin "Icom" style speakermics "may" work thru this adapter, but at that point I would suggest getting the correct Speakermic - either the MH-57A4b, the CMP460 , or the MH-73A4B, no need for adapter.

**Q: just confirming, this unit will split the audio output from the mic input and the PTT on the mic still keys?**
A: yes

## Frequently Bought Together

- Yaesu Vertex/Standard Horizon CT-91 Speaker Microphone Adapter
- Fumei USB Power Supply Charger Cable Compatible with Yaesu VX-5R VX-6R VX-7R VX-8R FT-2DR FT-70DR FT-270R Walkie Talkie
- AA Battery Case for Yaesu Walkie Talkie Radio VX-5R VX-6R VX-7R VX-6E as FBA 23

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**Shop now:** [https://www.desertcart.com.cy/products/50720450-yaesu-vertex-standard-horizon-ct-91-speaker-microphone-adapter](https://www.desertcart.com.cy/products/50720450-yaesu-vertex-standard-horizon-ct-91-speaker-microphone-adapter)

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-04-25*