--- product_id: 434770059 title: "Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100" brand: "avantree" price: "80868 Ft" currency: HUF in_stock: true reviews_count: 5 category: "Avantree" url: https://www.desertcart.hu/products/434770059-quartet-extra-2-4g-rf-wireless-add-on-headphones-quartet store_origin: HU region: Hungary --- # Lightweight memory foam earpads, ergonomic fit 2.4G RF wireless tech, ultra-low latency ~30ms 20-hour battery life for marathon sessions Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100 **Brand:** avantree **Price:** 80868 Ft **Availability:** ✅ In Stock ## Summary > 🎬 Elevate your silent party game with zero lag and total comfort! ## Quick Answers - **What is this?** Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100 by avantree - **How much does it cost?** 80868 Ft with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/434770059-quartet-extra-2-4g-rf-wireless-add-on-headphones-quartet) ## 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 - • **All-Day Comfort:** Featherlight design with soft memory foam earpads keeps you immersed, pressure-free. - • **Seamless Group Listening:** Scale up to 100 headphones for epic silent events—no neighbors disturbed. - • **Lag-Free Audio Experience:** 2.4G RF tech slashes audio delay to ~30ms, beating Bluetooth by miles. - • **Personalized Sound Control:** Built-in individual volume knobs let everyone tune in their perfect vibe. - • **Endurance for the Long Haul:** Up to 20 hours of continuous playtime—your ultimate companion for movies & concerts. ## Overview The Avantree Quartet-Extra is a 2.4G RF wireless add-on headphone designed exclusively for the Avantree Quartet system. It supports up to 100 simultaneous users, delivering ultra-low latency audio (~30ms) far superior to Bluetooth, with individual volume controls and ergonomic memory foam earpads. Boasting a 20-hour battery life, these lightweight headphones are perfect for extended outdoor movies or silent concerts without disturbing others. ## Description Avantree Q5049-RX, an Add-on RF Wireless Headphones for [Avantree Q5049 Wireless TV Headphones Pack] (Sold Separately), Up to 100 Devices, Individual Volume Controls, 2 EQ Modes, 20H Playtime Review: Perfect - I really do prefer the headphones with metal slides to adjust length as they last much longer. Sound is great and fit just as I like. Review: These DO work with the Duet - The two headsets that came with my Duet are both falling to pieces, so I noticed that this item (an extra headset for the Quartet) was 1] built differently and 2] ten quid cheaper than the extra headset for the Duet. However, the desertcart product description implied that these headphones would not work other systems. The Avantree website begs to differ. So I bought this item and it works - pairs OK with the Duet. I'm a fan of Avantree RF headsets because of their low latency - their audio quality is subjective, but is okay for my 84 year-old ears. I've never managed to overcome lip-sync problems with Bluetooth OTH phones. Not had them long, but they seem comfortable and I hope they last a bit longer than the poor build quality Duet ones. ## 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 | |---------------|-------| | ASIN | B09DKS353X | | Additional Features | Add on 2.4G RF wireless headphones for Avantree Q5049 Set,, No Lip-sync Delay, 2 EQ Modes for Clear Voice & Balanced Sound, Enhanced Volume, Individual Volume Controls, 20H Playtime | | Age Range Description | Adult | | Antenna Location | Movie or Concert Sessions | | Audio Driver Type | Dynamic Driver | | Audio Latency | 30 Milliseconds | | Battery Average Life | 20 Hours | | Battery Charge Time | 2 Hours | | Best Sellers Rank | #100,213 in Electronics ( See Top 100 in Electronics ) #1,721 in Over-Ear Headphones | | Brand | Avantree | | Built-In Media | Carry bag, 3.5mm jack | | Cable Features | Retractable | | Carrying Case Color | Black | | Carrying Case Material | Faux Leather | | Color | Black or Gray | | Colour | Black or Gray | | Compatible Devices | Avantree Q5049 Wireless TV Headphones Pack, Avantree Quartet, Avantree Audiplex, Avantree Duet | | Connectivity Technology | Wireless | | Control Method | Remote | | Control Type | Volume Control | | Controller Type | wireless volume controller | | Customer Reviews | 4.3 out of 5 stars 53 Reviews | | Ear placement | Over Ear | | Earpiece Shape | Over-ear | | Enclosure Material | memory foam | | Form factor | Over Ear | | Frequency Range | 20 Hz - 20,000 Hz | | Frequency Response | 20000 Hz | | Headphone Folding Features | Over Ear | | Headphone Jack | 3.5 mm Jack | | Headphones Ear Placement | Over Ear | | Impedance | 32 Ohms | | Is Autographed | No | | Item Type Name | an Add-on RF Wireless Headphones for Avantree Q5049 | | Item Weight | 220 Grams | | Manufacturer | Avantree | | Model Name | WSHT-5049-RX | | Model Number | WSHT-5049-RX | | Noise Control | None | | Noise control | None | | Number of Items | 1 | | Number of Power Levels | 5 | | Specific Uses For Product | Home Entertainment | | Style Name | Single Headphones | | Subject Character | no character | | Theme | Movie | | Warranty Description | Warranty - 12 months (extend to 24 months with product registration) | Email - support@avantree.com | Video user guide FAQ and registration - support.avantree.com | | Water Resistance Level | Not Water Resistant | | Wireless Technology | RF | ## Product Details - **Brand:** Avantree - **Colour:** Black - **Ear placement:** Over Ear - **Form factor:** Over Ear - **Impedance:** 32 Ohms ## Images ![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) ## 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 ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect *by D***T on 1 November 2024* I really do prefer the headphones with metal slides to adjust length as they last much longer. Sound is great and fit just as I like. ### ⭐⭐⭐⭐⭐ These DO work with the Duet *by W***K on 18 July 2026* The two headsets that came with my Duet are both falling to pieces, so I noticed that this item (an extra headset for the Quartet) was 1] built differently and 2] ten quid cheaper than the extra headset for the Duet. However, the Amazon product description implied that these headphones would not work other systems. The Avantree website begs to differ. So I bought this item and it works - pairs OK with the Duet. I'm a fan of Avantree RF headsets because of their low latency - their audio quality is subjective, but is okay for my 84 year-old ears. I've never managed to overcome lip-sync problems with Bluetooth OTH phones. Not had them long, but they seem comfortable and I hope they last a bit longer than the poor build quality Duet ones. ### ⭐⭐⭐⭐⭐ responde a lo anunciado *by L***. on 23 November 2024* responde a lo anunciado ## Frequently Bought Together - Avantree Quartet-Extra - 2.4G RF Wireless Add-On Headphones Quartet Multiple Listening System, Scalable to 100 - Avantree Quartet - 4 Wireless Headphones & 1 Transmitter for Multiple Group Listening Scalable to 100 with No Lip-Sync Delays for TV Watching, Silent Discos, Hearing Assistance in Church, and More - Avantree [Super Stable] Neetto Dual Headphones Stand for Desk, Aluminum Alloy & Metal Gaming Headsets Holder Hanger for Sennheiser, Sony, Audio-Technica, Bose, Beats, Akg, Display Mount - HS908 --- ## 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.hu/products/434770059-quartet-extra-2-4g-rf-wireless-add-on-headphones-quartet](https://www.desertcart.hu/products/434770059-quartet-extra-2-4g-rf-wireless-add-on-headphones-quartet) --- *Product available on Desertcart Hungary* *Store origin: HU* *Last updated: 2026-09-10*