---
product_id: 2115566
title: "RoadKing RK56B Black 4-Pin Dynamic Noise Canceling CB Microphone"
brand: "roadking"
price: "€ 51.77"
currency: EUR
in_stock: true
reviews_count: 13
category: "Road King"
url: https://www.desertcart.ie/products/2115566-roadking-rk56b-black-4-pin-dynamic-noise-canceling-cb-microphone
store_origin: IE
region: Ireland
---

# 2000 Ohm impedance for seamless device match 4-pin dynamic mic for crystal-clear comms Noise-canceling tech blocks background chaos RoadKing RK56B Black 4-Pin Dynamic Noise Canceling CB Microphone

**Brand:** roadking
**Price:** € 51.77
**Availability:** ✅ In Stock

## Summary

> 🎙️ Own the airwaves with unmatched clarity and control!

## Quick Answers

- **What is this?** RoadKing RK56B Black 4-Pin Dynamic Noise Canceling CB Microphone by roadking
- **How much does it cost?** € 51.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/2115566-roadking-rk56b-black-4-pin-dynamic-noise-canceling-cb-microphone)

## Best For

- roadking enthusiasts

## Why This Product

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

## Key Features

- • **Seamless Compatibility:** 4-pin connector and 2000 Ohm impedance perfectly match a wide range of CB radios.
- • **Precision Frequency Range:** 100Hz-8kHz frequency response captures every word with clarity.
- • **Ergonomic & Durable Design:** Black cycolac casing with flexible cord built for long hauls and daily use.
- • **Crystal-Clear Communication:** Dynamic noise-canceling mic ensures your voice cuts through any chatter.
- • **Instant Control at Your Fingertips:** 2-position momentary slide switch for effortless push-to-talk functionality.

## Overview

The RoadKing RK56B is a professional-grade 4-pin dynamic CB microphone featuring advanced noise-canceling technology, a robust black cycolac casing, and a flexible cord. Designed for clear, reliable communication, it offers a frequency response of 100Hz-8kHz and a 2000 Ohm impedance to ensure compatibility with most CB radios. Its ergonomic design and intuitive 2-position slide switch make it the go-to mic for serious drivers and radio enthusiasts alike.

## Description

The RoadKing RK56B has a 4-pin connector, black cycolac case and Noise cancelling dynamic microphone with a flexible black cord. 2 position momentary slide switch with normally open contacts. Frequency Response: 100Hz-8kHz, Output Level at 1kHz Open Circuit: -72dB (ret. 0dB=1V/Ohm Bar) Power Level: -55dB (ret 0dB=1Mw/10 Ohm Bar) Output Impedance: 2000 Ohms (Matches 600-5000 Ohm Inputs)

Review: Works great - Great mic, no issues, people can hear me loud and clear.
Review: Road king 56 - Great mic

## Features

- RoadKing RK56B Black 4-Pin Dynamic Noise Canceling CB Microphone

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0031Y82FC |
| Customer Reviews | 4.5 4.5 out of 5 stars (1,332) |
| Date First Available | January 21, 2012 |
| Frequency Response | 8 KHz |
| Global Trade Identification Number | 00045464769629 |
| Impedance | 2000 Ohms |
| Is Discontinued By Manufacturer | No |
| Item Weight | 8.8 ounces |
| Item dimensions L x W x H | 6.3 x 4.1 x 2.6 inches |
| Item model number | RK56B |
| Manufacturer | RoadKing |
| Manufacturer Part Number | RK56B |
| Material | Plastic |
| Microphone Form Factor | Handheld |
| Number of Channels | 1 |
| Power Source | Corded Electric |
| Product Dimensions | 6.3 x 4.1 x 2.6 inches |
| Signal-to-Noise Ratio | 72 dB |
| Special Features | Stand |
| UPC | 796793744534 045464769629 788581179895 714833140283 |

## Product Details

- **Brand:** RoadKing
- **Color:** Black
- **Compatible Devices:** Radio, Smartphone
- **Connectivity Technology:** XLR
- **Connector Type:** XLR
- **Included Components:** Item and manual
- **Model Name:** RoadKing
- **Polar Pattern:** Unidirectional
- **Recommended Uses For Product:** Karaoke, Singing
- **Special Feature:** Stand

## Images

![RoadKing RK56B Black 4-Pin Dynamic Noise Canceling CB Microphone - Image 1](https://m.media-amazon.com/images/I/51u6-81j1pL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by N***A on December 24, 2025*

Great mic, no issues, people can hear me loud and clear.

### ⭐⭐⭐⭐⭐ Road king 56
*by J***E on February 7, 2026*

Great mic

### ⭐⭐⭐⭐⭐ Cb mic
*by R***D on February 15, 2026*

Imo best noise canceling mic for the money for everyday trucking only one ill use

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**Shop now:** [https://www.desertcart.ie/products/2115566-roadking-rk56b-black-4-pin-dynamic-noise-canceling-cb-microphone](https://www.desertcart.ie/products/2115566-roadking-rk56b-black-4-pin-dynamic-noise-canceling-cb-microphone)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-07*