---
product_id: 75991348
title: "TR503 Wireless FM Microphone Headset(Black) | for Church, Tour Guide, Teacher, Salesman, Conference, Karaoke, Hands-Free, Rechargeable Battery, Voice Amplifier Compatible"
brand: "retekess"
price: "$56.11"
currency: USD
in_stock: true
category: "Retekess"
url: https://www.desertcart.us/products/75991348-tr503-wireless-fm-microphone-headset-black-for-church-tour-guide
store_origin: US
region: United States of America
---

# 15-level volume control 30m wireless range 450mAh rechargeable battery TR503 Wireless FM Microphone Headset(Black) | for Church, Tour Guide, Teacher, Salesman, Conference, Karaoke, Hands-Free, Rechargeable Battery, Voice Amplifier Compatible

**Brand:** retekess
**Price:** $56.11
**Availability:** ✅ In Stock

## Summary

> 🎙️ Own the room, wire-free and worry-free!

## Quick Answers

- **What is this?** TR503 Wireless FM Microphone Headset(Black) | for Church, Tour Guide, Teacher, Salesman, Conference, Karaoke, Hands-Free, Rechargeable Battery, Voice Amplifier Compatible by retekess
- **How much does it cost?** $56.11 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/75991348-tr503-wireless-fm-microphone-headset-black-for-church-tour-guide)

## Best For

- retekess enthusiasts

## Why This Product

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

## Key Features

- • **Power That Lasts:** Built-in 450mAh lithium battery keeps you going through long sessions.
- • **Featherlight Comfort:** At just 50g, wear it all day without fatigue or distraction.
- • **Plug & Play Simplicity:** Instant FM frequency pairing—no Bluetooth hassle, just pure performance.
- • **Precision Audio Control:** 15 adjustable volume levels for crystal-clear voice amplification.
- • **Seamless 30m Wireless Freedom:** Move and speak confidently without being tethered by cables.

## Overview

The Retekess TR503 is a lightweight, wireless FM microphone headset designed for hands-free voice amplification. Featuring a 30-meter transmission range, a rechargeable 450mAh lithium battery, and 15 volume levels, it’s ideal for professionals in teaching, guiding, sales, conferences, and karaoke. Easy to pair with any FM speaker, it delivers clear, unidirectional audio without Bluetooth connectivity.

## Description

desertcart.com: Retekess TR503 Wireless FM Microphone Headset, Hands-Free with Rechargeable Battery for Voice Amplifier, Church, Tour Guide, Teacher, Salesman, Conference, Karaoke (Black) : Musical Instruments

## Features

- Long transmission distance; The transmission distance of 30m(98ft) in the open air; Easy to use for school; speech; training; conference etc
- Sensitive microphone; 15 levels of transmit volume adjustable; only a portable headset FM transmitter; cannot connect to the device via Bluetooth
- Built-in lithium battery; The TR503 FM transmitter built-in 450mAh lithium battery
- show frequency; simply pair the FM microphone to the speaker with the same frequency and you are ready to go
- Lightweight and easy to wear; The TR503 FM transmitter only 50g; easy to wear and operate

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07D5TVTT6 |
| Antenna Location | Conference |
| Audible Noise | 60 Decibels |
| Best Sellers Rank | #20,084 in Musical Instruments ( See Top 100 in Musical Instruments ) #99 in Wireless Headset Microphones & Systems |
| Brand | Retekess |
| Built-In Media | Built-In Mic |
| Color | Black |
| Compatible Devices | Amplifier, Headphone |
| Connectivity Technology | Wireless |
| Connector Type | Wireless |
| Customer Reviews | 4.3 4.3 out of 5 stars (104) |
| Enclosure Material | Acrylonitrile Butadiene Styrene |
| Frequency Range | 87.9-91.9Mhz |
| Frequency Response | 15 KHz |
| Hardware Platform | Karaoke Machine |
| Item Dimensions | 7.87 x 5.91 x 1.18 inches |
| Item Weight | 50 Grams |
| Manufacturer | Retekess |
| Mfr Part Number | FY4430A |
| Microphone Form Factor | Headset |
| Model Name | TR503 |
| Model Number | FY4430A |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Number of Channels | 1 |
| Polar Pattern | Unidirectional |
| Power Source | Battery Powered |
| Signal-to-Noise Ratio | 60 dB |
| Special Feature | Bluetooth, Lightweight, Rechargeable, Wireless |
| UPC | 609378746666 |
| Warranty Description | Simple and Convenient return process: We provide 1 year warranty and 30 days no reason to return. |

## Product Details

- **Brand:** Retekess
- **Color:** Black
- **Compatible Devices:** Amplifier, Headphone
- **Connectivity Technology:** Wireless
- **Connector Type:** Wireless
- **Included Components:** Built-In Mic
- **Model Name:** TR503
- **Polar Pattern:** Unidirectional
- **Recommended Uses For Product:** Conference
- **Special Feature:** Bluetooth, Lightweight, Rechargeable, Wireless

## Images

![TR503 Wireless FM Microphone Headset(Black) | for Church, Tour Guide, Teacher, Salesman, Conference, Karaoke, Hands-Free, Rechargeable Battery, Voice Amplifier Compatible - Image 1](https://m.media-amazon.com/images/I/51zLNrRKd7L.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-25*