⛪ 🎧The Secret to Clear Group Listening for Churches, Classes & Events
Want to share clear, high-quality audio with a group — without spending thousands?
Whether you're organizing a worship service, running a seminar, or managing a classroom, Avantree offers affordable, next-to-none latency group listening systems that deliver top-tier wireless performance, stable connectivity, and flexibility across all your needs.
Meet the Listening Families: Harmony, Audiplex, and Quartet
Harmony Family – Portable Wireless Speakers
Ideal for small groups or table setups, Harmony is your go-to solution when you want to broadcast audio to multiple people wirelessly, using compact portable speakers.
- Built-in speaker, no headphones needed
- Works great for round-table discussions or group meditation
- Plug-and-play simplicity
- Compatible with Bluetooth phones, mixers, TVs, and wireless mics
- Ultra-low latency for real-time listening
Audiplex Family – Clip-On Receivers with Wired Earbuds
Perfect for churches, guided tours, or language translation. Audiplex systems include a single transmitter and multiple clip-on receivers that connect with disposable wired earbuds, ensuring hygienic, scalable, and customizable listening.
- Independent volume control on each receiver
- Lightweight and wearable — no bulky headphones
- Disposable or personal wired earbuds supported
- Ideal for assistive listening, interpretation, or public audio delivery
- Next-to-none latency with strong 2.4G signal
Quartet Family – Over-Ear Wireless Headphones
For large halls and immersive experiences, Quartet offers a premium listening solution with over-ear wireless headphones and professional-grade transmitters.
- Excellent sound isolation
- Comfortable, adjustable headphones
- Plug in your TV, mixer, or wireless microphone as the audio source
- Designed for seminars, senior centers, live performances
- Up to 100 users simultaneously
- Stable connection and crystal-clear sound, even at a distance
One System, Many Sources
All Avantree group listening systems work with your existing audio setup. You can connect:
- TVs
- Bluetooth phones or tablets
- Audio mixers
- Wireless microphones
Whether you’re broadcasting from a sermon mic, a classroom laptop, or a TV show for seniors, our systems adapt easily to your needs.
Ultra-Low Latency. Pro-Grade Stability.
All three systems use our latest wireless audio tech to ensure next-to-none latency, synchronized playback, and no dropout — even across multiple users. No awkward delays. No echoes. Just seamless, shared sound.
Mix & Match Compatibility
The best part? Harmony, Audiplex, and Quartet systems are cross-compatible.
Start with one family and scale up later — you can reuse receivers, expand to more users, or switch between use cases without replacing everything.
Perfect For...
- Churches: Assistive listening, language interpretation
- Classrooms: Group audio with teacher-led control
- Events: Wireless seminar listening
- Care homes: Shared TV or music listening
- Tours & Studios: Real-time wireless instructions

Why Avantree?
- Over 20 years in wireless audio engineering
- Trusted by thousands of churches, schools, and communities
- Affordable pricing with premium audio quality
- Responsive support and scalable systems
Ready to Share Sound the Smart Way?
Explore the Harmony, Audiplex, and Quartet series — and find the best-fit wireless group audio system for your venue, class, or congregation.
Top-end sound. Budget-friendly. Built to grow with you.