Multi-Group
Auracast™ Multi-Group Audio Solution
Run multiple audiences in conferences, guided tours, VIP experiences, museum exhibitions, and assistive listening systems simultaneously with independent Auracast™ audio channels. Each group stays connected to its assigned broadcast for a reliable and uninterrupted listening experience.
Recommended MoerLab Solution Packages
Choose the deployment that best fits your application. Whether you need a permanent venue installation or a portable guided tour system, MoerLab provides a complete Auracast™ solution with MoerDuo Plus™ receivers.

TV hearMore™ + MoerDuo Plus™
Best for permanent installations. TV hearMore™ serves as a fixed Auracast™ broadcast transmitter, while MoerDuo Plus™ receivers deliver clear personal audio to multiple listeners throughout the venue.
- Designed for permanent and always-ready installations
- Supports HDMI ARC, Optical (SPDIF), AUX, and microphone audio sources
- Ideal for conference rooms, classrooms, churches, museums, theaters, and public venues
- Multiple MoerDuo Plus™ receivers can listen simultaneously
- Supports Pairing Lock for reliable group assignment

SoundLinker™ + MoerDuo Plus™
Best for mobile applications. SoundLinker™ provides a portable Auracast™ broadcast source for guides, presenters, lecturers, and on-site staff, while MoerDuo Plus™ receivers keep each group connected to its assigned audio channel.
- Portable Auracast™ broadcast transmitter
- Built-in microphone and external microphone input
- USB audio and 3.5 mm line-in support
- Ideal for guided tours, factory visits, exhibitions, lectures, and temporary events
- Supports Pairing Lock for reliable multi-group deployments
Flexible Listening Applications
MoerDuo Plus™ supports both hearing-aid users and standard wired earphone users through its 3.5 mm audio output.

Designed for Hearing Aid Users
MoerDuo Plus™ + T-Connect™ Telecoil Neck Loop
Experience Auracast™ broadcast audio directly with telecoil-equipped hearing aids. Simply connect the T-Connect™ neck loop to the 3.5 mm audio output of MoerDuo Plus™ to receive clear broadcast audio in museums, theaters, churches, conference venues, classrooms, and assistive listening systems.
- Compatible with T-Coil hearing aids
- 3.5 mm plug-and-play connection
- No Bluetooth pairing required for hearing aid users
- Ideal for assistive listening systems

Convenient and Hygienic Listening
MoerDuo Plus™ + Wired Earphones
MoerDuo Plus™ can be connected directly to standard 3.5 mm wired earphones for a simple, reliable, and more hygienic listening experience. Users can bring and use their own earphones, making it ideal for shared public environments such as museums, churches, classrooms, conferences, guided tours, and assistive listening venues.
- Compatible with standard 3.5 mm wired earphones
- Plug-and-play without Bluetooth pairing
- Users can use their own earphones for better hygiene
- Ideal for shared listening environments
Pairing Lock & Unlock Feature
Starting from firmware version V5.2.3 and later, MoerDuo Plus™ supports Pairing Lock and Pairing Unlock functions.
This feature allows the receiver to reconnect with a specific Auracast™ transmitter and helps prevent unintended connections to nearby broadcasts.
How to Enable Pairing Lock
- Connect MoerDuo Plus™ to the desired Auracast™ transmitter.
- Once audio is being received normally, press the multifunction button four times.
- The LED indicator will turn solid purple.
- Pairing Lock is now enabled.
How to Remove Pairing Lock
- Press the multifunction button four times again.
- The receiver will exit Pairing Lock mode.
- If the transmitter is still connected, the LED returns to the normal connected status.
- If no transmitter is connected, the receiver returns to Auracast™ pairing mode.
| Status | LED Indicator |
|---|---|
| Pairing Lock Enabled | Solid Purple |
| Pairing Lock Removed while Connected | Purple Flashing |
| Pairing Lock Removed while Disconnected | Purple Fast Flashing |
Key Application Highlights
Pairing Lock for Reliable Group Listening
MoerDuo Plus™ keeps every listener connected to the designated Auracast™ transmitter, helping prevent unintended connections to nearby broadcasts in museums, conferences, guided tours, and assistive listening environments.
- Auditoriums, museums & exhibitions
- Guided tours & interpretation systems
- Assistive listening & accessibility deployments
SoundLinker™ provides the portable Auracast™ broadcast source for presenters, tour guides, and on-site staff. It transmits voice or external audio to multiple MoerDuo Plus™ receivers at the same time.
- Multiple tour groups in the same venue
- Outdoor events & mobile presentations
- Conference rooms, classrooms & exhibitions
TV hearMore™ provides a reliable fixed-installation Auracast™ broadcast source for public venues. It continuously transmits TV, presentation, microphone, or external audio to multiple MoerDuo Plus™ receivers, making it ideal for multi-language, multi-group, and assistive listening deployments.
- Churches, theaters & auditoriums
- Museums, exhibitions & visitor centers
- Conference rooms, classrooms & training spaces
- Assistive listening & multi-language audio systems