{"product_id":"avantree-quartet-extra-add-on-headphones-2-4g-rf-wireless-scalable-to-100","title":"Avantree Quartet-Extra Add-On Headphones – 2.4G RF Wireless, Scalable to 100","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eEnhance any Avantree Quartet setup with the Quartet-Extra add-on headphones. This lightweight, comfortable pair is designed to work with the Quartet bundle (sold separately) and lets you expand group listening to a full audience—great for outdoor movies, silent concerts, or any shared space where quiet is key.\u003c\/p\u003e\n\u003cp\u003eWith a focus on reducing delays and improving clarity, Quartet-Extra is built for environments where everyone should be able to hear clearly without stepping on each other’s toes. The result is a more immersive experience for viewers, listeners, and performers alike, without the need to raise the volume for the entire room.\u003c\/p\u003e\n\n\u003ch3\u003eCompatibility and Performance\u003c\/h3\u003e\n\u003cp\u003eNote that these are add-on headphones and only function when paired with the Quartet system. They use 2.4G wireless rather than Bluetooth, which helps reduce audio lag and increase overall sound quality. Expect a smoother, more immediate listening experience thanks to the higher bit rate and wider bandwidth offered by the 2.4G connection.\u003c\/p\u003e\n\n\u003ch3\u003eKey Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2.4G wireless, not Bluetooth\u003c\/strong\u003e: lower latency and higher bandwidth for crisper audio.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLower delays, better quality\u003c\/strong\u003e: latency around ~30 ms improves real-time listening compared with typical Bluetooth ranges.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eScalability\u003c\/strong\u003e: add up to 100 headphones to a single Quartet bundle for larger events.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eComfort and Durability\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight \u0026amp; comfortable\u003c\/strong\u003e: ergonomic design with soft memory foam ear pads and an adjustable headband for all-day wear.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplaceable ear pads\u003c\/strong\u003e available if you want to refresh comfort or hygiene over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePower and Control\u003c\/h3\u003e\n\u003cp\u003eEnjoy long sessions with up to 20 hours of battery life per charge, making it easier to cover full movies, concerts, or multi-day events without frequent recharging. Each headset includes individual volume control so listeners can tailor their own listening level without impacting others.\u003c\/p\u003e\n\n\u003ch3\u003ePractical Scenarios\u003c\/h3\u003e\n\u003cp\u003eIdeal for family movie nights, silent discos, classrooms, or outdoor screenings where background noise matters. The Quartet-Extra helps you maintain a focused listening environment while keeping neighbors and nearby attendees undisturbed. While it is designed to work with the Quartet system, it remains a flexible choice for anyone seeking a scalable listening setup in compatible contexts.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eCompatibility note:\u003c\/em\u003e These headsets require the Quartet bundle to operate and are not standalone Bluetooth devices.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is Avantree Quartet-Extra designed for?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: An add-on wireless headset for the Quartet system, scalable to 100 units for group listening without disturbing others.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does Quartet-Extra use Bluetooth?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. It uses 2.4G wireless with lower latency and higher bandwidth for clearer sound.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Avantree","offers":[{"title":"Default Title","offer_id":48406577053853,"sku":"B09DKS353X","price":107.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/avantree-quartet-extra-headphones-on-ear.jpg?v=1781139404","url":"https:\/\/nexoltic.com\/products\/avantree-quartet-extra-add-on-headphones-2-4g-rf-wireless-scalable-to-100","provider":"Nexoltic","version":"1.0","type":"link"}