---
product_id: 753298763
title: "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"
brand: "fifine"
price: "AR$619046"
currency: ARS
in_stock: true
reviews_count: 5
category: "Fifine"
url: https://www.desertcart.com.ar/products/753298763-fifine-wireless-microphone-system-wireless-microphone-set-with-headset-lavalier
store_origin: AR
region: Argentina
---

# Dual mic options: headset & lavalier for versatile use 20 UHF frequencies for interference-free clarity Real-time battery status with low-battery alerts 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

**Brand:** fifine
**Price:** AR$619046
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 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 by fifine
- **How much does it cost?** AR$619046 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/753298763-fifine-wireless-microphone-system-wireless-microphone-set-with-headset-lavalier)

## 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

- • **Plug & Play Wireless Freedom:** Setup is as simple as plugging in a wired mic—cut the cords, not the professionalism.
- • **Seamless 20-Channel UHF Operation:** Switch frequencies effortlessly to avoid interference and maintain crystal-clear sound.
- • **Smart LCD Display & Battery Alerts:** Stay in control with real-time system monitoring and low-battery warnings—never miss a beat.
- • **Dual Mic Flexibility for Every Speaker:** Choose between a secure headset or discreet lavalier mic to match your style and setting.
- • **Universal Compatibility & Pro Accessories:** Works with mixers, PA systems, cameras, and smartphones, complete with adapter cables and windscreen for pristine audio.

## Overview

The Wireless Microphone System K037B offers 20 selectable UHF frequencies for interference-free audio, featuring a headset and lavalier mic for versatile speaking styles. Its easy-to-read LCD display provides real-time system and battery status, while the beltpack transmitter and receiver ensure reliable wireless range up to 65 feet. Compatible with mixers, PA systems, cameras, and smartphones, this plug-and-play set is ideal for teaching, preaching, public speaking, and content creation.

## Description

Buy 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. Free delivery and returns on eligible orders.

Review: 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: 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, Receiver battery condition indicators with low-battery warnings.
- 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 |
| Audio Sensitivity | 95 Decibels |
| Batteries | 2 AAA batteries required. (included) |
| Battery type | Alkaline |
| Best Sellers Rank | #7,940 in Musical Instruments ( See Top 100 in Musical Instruments ) #182 in Wireless Lavalier Microphones & Systems |
| Color Name | Black |
| Customer Reviews | 4.2 4.2 out of 5 stars (3,600) |
| Date First Available | October 13, 2017 |
| Frequency Response | 15 KHz |
| Hardware Platform | Camera, Smartphone |
| Is Discontinued By Manufacturer | No |
| Item Weight | 9.9 ounces |
| Item dimensions L x W x H | 2.68 x 6.38 x 7.95 inches |
| Item model number | K037B |
| Manufacturer | FIFINE |
| Material | Metal |
| Material Type | Metal |
| Microphone Form Factor | Lavalier |
| Number of Batteries | 2 AAA batteries required. (included) |
| Number of Channels | 1 |
| Number of Strings | 4 |
| Power Source | Battery Powered |
| Product Dimensions | 2.68 x 6.38 x 7.95 inches |
| Signal-to-Noise Ratio | 58 dB |
| Size | 'Lapel+Headset-K037B' |
| String Gauge | Custom |
| String Material | Alloy Steel |
| UPC | 728290254117 |

## Product Details

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

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/61mqjTbZ-rL.jpg)
![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 - Image 2](https://m.media-amazon.com/images/I/61SsQdrHB9L.jpg)
![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 - Image 3](https://m.media-amazon.com/images/I/61BK02DcEfL.jpg)
![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 - Image 4](https://m.media-amazon.com/images/I/71yip8HOS5L.jpg)
![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 - 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

### ⭐ Review
*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

### ⭐⭐⭐⭐⭐ Review
*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.

### ⭐⭐⭐⭐⭐ Review
*by K***A on 8 November 2021*

I purchased it last week, so far it is working well. I don't have any issues with it. I am a fitness instructor and using it for my group classes

## 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)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.ar/products/753298763-fifine-wireless-microphone-system-wireless-microphone-set-with-headset-lavalier](https://www.desertcart.com.ar/products/753298763-fifine-wireless-microphone-system-wireless-microphone-set-with-headset-lavalier)

---

*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-03-16*