---
product_id: 567186663
title: "Avantree Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100"
brand: "avantree"
price: "€ 275.40"
currency: EUR
in_stock: true
url: https://www.desertcart.de/products/567186663-avantree-quartet-extra-2-4g-rf-wireless-add-on-headphones
store_origin: DE
region: Germany
---

# 2.4G RF tech, ultra-low latency ~30ms Individual volume control per user 20-hour extended battery life Avantree Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100

**Brand:** avantree
**Price:** € 275.40
**Availability:** ✅ In Stock

## Summary

> 🎧 Elevate your group audio game with zero lag and total comfort!

## Quick Answers

- **What is this?** Avantree Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100 by avantree
- **How much does it cost?** € 275.40 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/567186663-avantree-quartet-extra-2-4g-rf-wireless-add-on-headphones)

## Best For

- avantree enthusiasts

## Why This Product

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

## Key Features

- • **Marathon Battery Life:** Keep the party going with up to 20 hours of uninterrupted wireless audio.
- • **All-Day Comfort Design:** Lightweight, flexible frame with memory foam earpads for pressure-free wear.
- • **Seamless Group Listening:** Scale up to 100 headphones for epic silent events without disturbing anyone.
- • **Lag-Free Audio Experience:** 2.4G RF tech slashes audio delay to ~30ms, beating Bluetooth by miles.
- • **Personalized Sound Control:** Each headphone sports built-in volume control for your perfect vibe.

## Overview

The Avantree Quartet-Extra is a 2.4G RF wireless headphone add-on designed exclusively for the Avantree Quartet system, allowing up to 100 users to connect simultaneously. It delivers ultra-low audio latency (~30ms), superior sound quality, and individual volume controls. Lightweight and ergonomically crafted with memory foam earpads, it offers up to 20 hours of battery life, perfect for extended silent movie nights or concerts.

## Description

Avantree Q5049-RX, a wireless RF headset add-on for [Avantree Q5049 Wireless TV Headset Pack] (sold separately), up to 100 devices, individual volume control, 2 EQ modes, 20 hours battery life

## Features

- [ONLY WORKS WITH QUARTET] This single pair of 2.4G wireless headphones is an add-on for the Avantree Quartet bundle (sold separately). Add up to 100 of these headphones to the Quartet bundle and enjoy an outdoor movie or silent concert without disturbing the neighbors.
- [LESS DELAYS, BETTER QUALITY] The Quartet-Extra headphones feature 2.4G technology and NOT Bluetooth. This reduces the audio lag down to ~30ms -- significantly less than the 220ms of standard Bluetooth and even the 40ms of aptX Low Latency. This also improves overall sound quality due to 2.4G's higher bit rate & extended bandwidth.
- [INDIVIDUAL VOLUME CONTROL] Each pair of wireless headphones are equipped with built-in individual volume controls, so everyone can listen at their own desired volume.
- [LIGHTWEIGHT & COMFORTABLE] These headphones are ergonomically designed to be lightweight and flexible, featuring soft memory foam earpads and an adjustable headband. Enjoy all-day, pressure-free use. NOTE: Replaceable earpads are available for purchase.
- [EXTENDED PLAYTIME] With a battery life of up to 20 hours, these headphones will last through your longest movie or concert sessions with time to spare.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Headphones Jack | 3.5 mm Jack |
| Model Name | WSHT-5049-RX |
| Connectivity Technology | Wireless |
| Wireless Communication Technology | RF |
| Included Components | Ear Cushions |
| Age Range (Description) | Adult |
| Material | Plastic |
| Specific Uses For Product | Home Entertainment |
| Charging Time | 2 Hours |
| Recommended Uses For Product | Familiy movie, TV Watching |
| Compatible Devices | Quartet Bundle Transmitter |
| Control Type | Volume Control |
| Cable Feature | Without Cable |
| Item Weight | 220 Grams |
| Water Resistance Level | Not Water Resistant |
| Frequency Range | 20 Hz - 20,000 Hz |
| Style | Single Headphones |
| Control Method | Remote |
| Number of Items | 1 |
| Controller Type | wireless volume controller |
| Battery Life | 2E+1 Hours |
| Audio Driver Type | Dynamic Driver |
| Audio Latency | 3E+1 Milliseconds |
| Earpiece Shape | Over Ear |
| Special Feature | Lightweight |
| Manufacturer | Avantree |
| Model | WSHT-5049-RX |
| Model Year | 2021 |
| Product Dimensions | 17 x 10 x 8 cm; 220 g |
| Batteries | 1 CR5 batteries required. (included) |
| Item model number | WSHT-5049-RX |
| Special Features | Lightweight |
| Batteries Included | Yes |
| Batteries Required | Yes |
| Battery cell composition | Lithium |
| Cable feature | Without Cable |
| Does it contain liquid? | No |
| Includes Rechargeable Battery | Yes |
| Manufacturer | Avantree |
| Country of Origin | USA |
| Item Weight | 220 g |

## Product Details

- **Brand:** Avantree
- **Colour:** Black
- **Form Factor:** Over Ear
- **Impedance:** 32 Ohm
- **Frequency Response:** 20000 Hz

## Images

![Avantree Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100 - Image 1](https://m.media-amazon.com/images/I/61CF7f0RcWL.jpg)
![Avantree Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100 - Image 2](https://m.media-amazon.com/images/I/61QZRSp5IuL.jpg)
![Avantree Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100 - Image 3](https://m.media-amazon.com/images/I/51L76wolESL.jpg)
![Avantree Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100 - Image 4](https://m.media-amazon.com/images/I/51zR6jKpkKL.jpg)
![Avantree Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100 - Image 5](https://m.media-amazon.com/images/I/51+ZjmMerZL.jpg)

## Questions & Answers

**Q: what cleaning products can i use to clean the headphones?**
A: These are the cleaning products we recommend for use on our headphones.
Disinfecting Wipes
https://www.amazon.com/dp/B08BKR9YT6
You can also get washable headphone covers for easy cleaning.
https://www.amazon.com/dp/B07BP4PCVY

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-01-23*