---
product_id: 753298763
title: "Wireless Microphone System (K037B)"
brand: "fifine"
price: "£119.68"
currency: GBP
in_stock: true
reviews_count: 5
category: "Fifine"
url: https://www.desertcart.co.uk/products/753298763-wireless-microphone-system-k037b
store_origin: GB
region: United Kingdom
---

# Dual mic set: Headset + Lavalier for versatile use 20 UHF frequencies for interference-free clarity Battery status LCD for real-time power monitoring Wireless Microphone System (K037B)

**Brand:** fifine
**Price:** £119.68
**Availability:** ✅ In Stock

## Summary

> 🎙️ Elevate your voice, ditch the wires, own the room.

## Quick Answers

- **What is this?** Wireless Microphone System (K037B) by fifine
- **How much does it cost?** £119.68 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/753298763-wireless-microphone-system-k037b)

## Best For

- fifine enthusiasts

## Why This Product

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

## Key Features

- • **Dual Mic Power Duo:** Switch effortlessly between discreet lavalier and secure headset mics for any speaking style.
- • **Plug & Play Simplicity:** Unique paired ID sync means setup is as easy as plugging in a wired mic—no tech headaches.
- • **Pro-Grade Compatibility:** Works flawlessly with mixers, PA systems, cameras, and smartphones via included adapters.
- • **Stay Powered, Stay Ready:** Built-in LCD alerts keep you ahead of battery life, so you never miss a moment.
- • **Seamless Wireless Freedom:** Cut the cords and move freely with up to 65 feet range and zero dropouts.

## Overview

The FIFINE Wireless Microphone System K037B delivers professional-grade audio with 20 selectable UHF frequencies to prevent interference, dual microphone options (headset and lavalier) for versatile speaking scenarios, and a user-friendly LCD display for battery monitoring. Designed for seamless wireless operation up to 65 feet, it’s ideal for teaching, preaching, presentations, and content creation, compatible with a wide range of audio devices via included adapters.

## Description

Product Description Clear Clean Sound Quality- Uni-directional condenser mic ensures clean transparent audio and enhanced vocal pickup. Ideal gift for youtubers. Stable UHF Frequencies- The wireless lapel microphone system has 20 frequencies selection for interference-free operation. No static,no drop out with working distance of 40-65 feet. Lightweight, Comfortable & Durable -Headset or Lavalier mic are ideal for applications requiring maximum performance and mobility. Easy-to-read LCD Indicator -The wireless system provides constant monitoring of system operation, including receiver low-power indicators. (Batteries are not included) Versatile and Compatible Microphone -Wireless microphone with 1/4 output works with PA System, Amplifier, Mixer, Audio Receiver, Camera as well. Not compatible with PC, laptop. Pls Choose another model, FIFINE K031B (ASIN: B074C125TN) for recording audio into your computer. Accessories Included -Includes headset mic and lavalier microphone, wireless transmitter and receiver, windscreens and tie-clip, two 1/4" to 1/8" adapter-cables. Warm Tips 1. Enter the Restore to Factory Settings or contacting FIFIENE service support team to get operation guide if device can’t started up after reload batteries. 2. Not compatible with ECOXGEAR EcoBoulder+, ION Pathfinder 280, ION Pathfinder 4 and small Bluetooth speakers lower than 15 watt, such as JBL charge, Doss touch, Bose. 3. Please use our original lapel microphone which is equipped. It’s more compatible with the FIFINE wireless transmitter, and makes the sound better. 4. The figure given is only the approximate value that applies when there are no obstructions between the transmitter and receiver. They need to be in direct line of ‘sight’ for them to work. This distance will vary depending on metal objects, people and other obstructions and on the signal strength. 5. Batteries are not included. The transmitter requires AA batteries, and the receiver requires AAA batteries. Battery life may vary depending on the type of battery used. It is recommend that use 1.5V alkaline batteries from desertcart for wireless transmitter and receiver.

Review: Disappointed - It is not my first product off Fifine I'm shocked that the mic didn't work I tried everything on the manual to make it work according to the problems encountered it connects for half a minute then it stops working and now I ended up with a non working mic
Review: Es perfecto y barato. - Tengo varios meses usandolos para grabae mis vídeos y me ha sido de mucha utilidad porque evito estar usando clables que se enrredan, además de que tiene un let que te avisa si la pila funciona bien o ya hay que cambiarla y ambos micrófonos funcionan perfecto para la ocasión, yo uso la diadema para vídeos solo y la otra para vídeos con colaboradores porque para vídeos solo tendría que estarlo agarrando y es incómodo. El único defecto es que a veces se oye interferencia, pero es muy poco y para el precio no es tan incómodo, pero es mucho más cómodo que tener cables, aunque debe haber mircrofonos mejores, dudo que a este precio.

## Features

- UHF Frequencies--The wireless lapel microphone system has 20 frequencies selection for seamless, interference prevention operation.An easy-to-read LCD information display provides constant monitoring of system operation, including receiver low-power indicators. (Tips: This wireless system is not self-powered but requires separately purchased batteries for operation.)
- Convenient and easy to use-- No static,no drop out with use at a distance of 40-65 feet.With unique paired ID synchronization for each wireless transmitter and receiver make setup easy.Setting up a wireless mic is as simple as plugging in a wired microphone.
- Wireless Headset & Lavalier--Headset microphone fits securely for active speakers and vocal performers.Lavalier microphone with included tie clip offers low visibility and convenient use.optimized for Houses of Worship in a church preaching,YouTube videos,and classroom and presentation applications.
- Versatile and Compatible Microphone-Work with mixers, pa speakers, electric guitar amplifiers and sound boards with 1/4'' interface to output the sound, ideal for teaching lectures,conference speech, visiting guide.With included 1/4" to 1/8" adapter-cable, suit for camera equipped 3.5mm mic jack recording.
- What You Get--Wireless microphone set included headset microphone and Clip-on Lavalier Microphone Body pack Transmitter, Receiver with 1/4'' Plug,Solid metal collar clip and windscreen reduces plosives, wind, and breath sounds.Female 1/4" to 1/8" TRS adapter converter cord (for camera). 1/4" to 1/8" TRRS adapter cable (for smartphone).

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B076F5W8Q5 |
| Antenna Location | Speech, Video Conference |
| Audible Noise | 58 Decibels |
| Audio Sensitivity | 95 Decibels |
| Best Sellers Rank | 86,930 in Musical Instruments & DJ ( See Top 100 in Musical Instruments & DJ ) 1,884 in Wireless Microphones & Receiver |
| Box Contents | Headset microphone, Clip-on Lavalier microphone, Body pack Transmitter, Receiver with 1/4'' Plug, Solid metal collar clip, Windscreens, 1/4'' to 1/8'' adapter-cable, 1/4'' to 1/8'' TRS adapter cable, Female 1/4'' to 1/8'' TRS adapter converter cord |
| Brand | FIFINE |
| Brand Name | FIFINE |
| Colour | black |
| Compatible Devices | Headphone, Radio |
| Connectivity Technology | Wireless |
| Connectivity technology | Wireless |
| Connector Type | 1/4" TRS |
| Connector type | 1/4" TRS |
| Customer Reviews | 4.1 out of 5 stars 3,480 Reviews |
| Enclosure Material | Metal |
| Frequency Range | 0.05 khz 15 khz |
| Frequency Response | 16 KHz |
| Hardware Platform | Camera, Smartphone |
| Impedance | 1900 Ohms |
| Item Dimensions | 6.8 x 16.2 x 20.2 centimetres |
| Item Type Name | Wireless Microphone System with Headset & Lavalier Lapel Mics,2pcs(receiver and transmitter) |
| Item Weight | 9.9 Ounces |
| Manufacturer | Fifine |
| Manufacturer Part Number | ABCD170019 |
| Microphone Form Factor | Lavalier |
| Model Name | wireless lapel microphone |
| Model Number | K037B |
| Model name | wireless lapel microphone |
| Number of Batteries | 2 AAA batteries required. |
| Number of Channels | 1 |
| Polar Pattern | Unidirectional |
| Power Source | Battery Powered |
| Recommended uses for product | Speech, Video Conference |
| Signal-to-Noise Ratio | 58 dB |
| Special Feature | Clip |
| Special feature | Clip |
| UPC | 728290254117 |
| Unit Count | 1.0 count |

## Product Details

- **Brand:** FIFINE
- **Colour:** black
- **Compatible devices:** Headphone, Radio
- **Connectivity technology:** Wireless
- **Connector type:** 1/4" TRS
- **Model name:** wireless lapel microphone
- **Polar pattern:** Unidirectional
- **Recommended uses for product:** Speech, Video Conference
- **Special feature:** Clip

## Images

![Wireless Microphone System (K037B) - Image 1](https://m.media-amazon.com/images/I/61mqjTbZ-rL.jpg)
![Wireless Microphone System (K037B) - Image 2](https://m.media-amazon.com/images/I/61SsQdrHB9L.jpg)
![Wireless Microphone System (K037B) - Image 3](https://m.media-amazon.com/images/I/61BK02DcEfL.jpg)
![Wireless Microphone System (K037B) - Image 4](https://m.media-amazon.com/images/I/71yywFXGoFL.jpg)
![Wireless Microphone System (K037B) - Image 5](https://m.media-amazon.com/images/I/617YdYo67sL.jpg)

## Questions & Answers

**Q: What are the exact 20 frequencies on these units please.  what is the mw output of the transmitters please.?**
A: Frequency is 565 to 584
Power 10db/10MV

**Q: I have a sony srs xb20 speaker can i use your system if i use a 1/4 to 3/8 adapter to plug into the Sony unit? if not why not?**
A: No, you can't. Because this receiver output is about the same level as a wired mic. It must be plugged into a 1/4'' speaker input designed for a mic connection. If your speaker has only 3.5mm line inputs which require a higher level signal than a mic provides, the mic will be not suitable to be used with it, even you add an adapter. The sound will be soft and hard to be heard.

**Q: Can I plug the receiver into my iPhone, audio mixer, or Mac to record the audio?**
A: Sorry, it works with only audio mixer that has 1/4" mic jack. If you need a mic to use with Mac, we have the K031 (Asin: B074C125TN) USB wireless lav mic. But neither of them will work with iPhone.

**Q: can it be used for singing**
A: It will be more suitable for speaking than singing. 
We would recommend the handheld mic K025(ASIN:B0795PNCBG) or K035(ASIN:B01MT6AAIC) for singing. All these mics need to work with speakers/amps that has 1/4'' mic input.

## Customer Reviews

### ⭐ Disappointed
*by A***I on 1 December 2022*

It is not my first product off Fifine I'm shocked that the mic didn't work I tried everything on the manual to make it work according to the problems encountered it connects for half a minute then it stops working and now I ended up with a non working mic

### ⭐⭐⭐⭐⭐ Es perfecto y barato.
*by R***A on 9 December 2018*

Tengo varios meses usandolos para grabae mis vídeos y me ha sido de mucha utilidad porque evito estar usando clables que se enrredan, además de que tiene un let que te avisa si la pila funciona bien o ya hay que cambiarla y ambos micrófonos funcionan perfecto para la ocasión, yo uso la diadema para vídeos solo y la otra para vídeos con colaboradores porque para vídeos solo tendría que estarlo agarrando y es incómodo. El único defecto es que a veces se oye interferencia, pero es muy poco y para el precio no es tan incómodo, pero es mucho más cómodo que tener cables, aunque debe haber mircrofonos mejores, dudo que a este precio.

### ⭐⭐⭐⭐⭐ Microfone para professor.
*by J***S on 22 March 2026*

Excelente! Funciona muito bem.

## Frequently Bought Together

- FIFINE Wireless Microphone System, Wireless Microphone set with Headset and Lavalier Lapel Mics, Beltpack Transmitter and Receiver,Ideal for Teaching, Preaching and Public Speaking Applications-K037B
- ttstar Wireless Microphone System Headset/Stand/Lavalier Mic with Rechargeable Bodypack Transmitter Receiver for PA Speaker, Camera, Recording, Teaching, Church
- Bietrun Wireless Microphone Headset, UHF Wireless Headset Mic System, 160ft Range,1/8'' and 1/4'' Plug, for Speakers, Voice Amplifier, PA System(Not Supported AUX/iOS)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-01*