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Harmony A3 | Auracast Audio Transmitter & Speaker Receiver Kit
Auracast Bluetooth 5.4 Transmitter/Receiver Set, One-to-Many Speaker System, 328ft Range
- $239.99
- Unit price
- per
Harmony A3: Auracast One-to-Many Speaker System
Harmony A3: Auracast One-to-Many Speaker System
AuraLink: Auracast Audio Receiver
Oasis Aura: Auracast Transmitter
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For Multi-Speaker Venues
Designed for venues that need wireless audio to multiple speakers, including classrooms, meeting rooms, exhibitions, and restaurants. Best suited for shared listening environments where stable coverage matters more than ultra-low latency. -
Auracast Wireless Broadcasting
Uses Auracast technology to broadcast audio from one source to multiple speaker receivers simultaneously. Enables scalable speaker deployment and consistent group listening without pairing limits or complex network configuration. -
Long Range Coverage Up To 100m
Supports wireless audio transmission up to approximately 100 meters in open environments. Suitable for larger rooms or distributed spaces requiring flexible speaker placement and wide coverage. -
NOT FOR Passive Speakers
Not compatible with passive (unpowered) speakers and cannot directly drive speaker drivers. Requires powered speakers or amplified audio systems for operation. -
LIMITED By Broadcast Latency
Audio latency is typically around 50–70 ms due to broadcast transmission. Suitable for speech and background audio, but not recommended for applications requiring strict audio-visual synchronization.
• Oasis Aura Transmitter x1
• AuraLink Receiver x3
• Type C Data & Power Cable x4
• 3.5mm Audio Cable x4
• Optical Audio Cable x1
• RCA to AUX 3.5mm Cable x3
• AuraLink Receiver x3
• Type C Data & Power Cable x4
• 3.5mm Audio Cable x4
• Optical Audio Cable x1
• RCA to AUX 3.5mm Cable x3
In Stock—Estimated delivery
3–7 business days
$239.99
Specifications
🔄 Set
| Wireless Connectivity | Bluetooth 5.4 (Auracast) |
| Audio Latency | Auracast LC3: approx. 50–70 ms |
| Bluetooth Profiles | Classic Bluetooth Audio (A2DP, AVRCP) + Auracast Broadcast & Receiver (PBP, TMAP) |
| Audio Input Options | Optical (TOSLINK), 3.5 mm AUX, Bluetooth |
| Recommended Range |
• Transmitter to Receivers: up to 328 ft / 100 m • Phone / PC to Transmitter: up to 33 ft / 10 m |
| Package Configuration | 1 × Transmitter + 3 × Receivers |
📡 Transmitter
| Bluetooth Version | v5.4 |
| Bluetooth Profiles | Classic Bluetooth (A2DP, AVRCP) + Auracast Broadcast (PBP, TMAP) |
| Audio Codec | Auracast LC3 |
| Audio Input | Optical (TOSLINK), 3.5 mm AUX, Bluetooth |
| Operating Range |
Up to 328 ft / 100 m to receivers Up to 33 ft / 10 m from phone / PC |
| Power Input | DC 5V / 1A |
| Firmware Upgrade | Yes (DFU support) |
| Dimensions | 4.5 × 3 × 1.2 in (114 × 75 × 30 mm) |
| Weight | 0.2 lbs (90 g) |
📥 Receiver
| Bluetooth Version | v5.4 |
| Operating Frequency | 2.402 – 2.483 GHz |
| Bluetooth Profiles | Classic Audio (A2DP, AVRCP) + Auracast Receiver (TMAP, Broadcast Scan) |
| Supported Audio Codecs |
Classic: aptX-Adaptive, aptX-HD, aptX, SBC Auracast: LC3 |
| Bluetooth Profiles | A2DP v1.4, AVRCP v1.6.2, Auracast |
| Operating Range | ≤ 328 ft / 100 m |
| Battery Type | Lithium-ion polymer |
| Average Battery Life | Up to 20 hours |
| Charging Time | Approx. 1.5 hours |
| Charging Port | USB-C |
| Power Supply | 5V / 500mA–2A USB charger |
| Dimensions / Weight | Ø49 × 16.3 mm / 22.5 g |
Q & A
Q1: Can I use Harmony A3 with my existing speakers?
Yes. Harmony A3 works with powered speakers using AUX or RCA input. Just plug in the receiver to upgrade your current speakers to an Auracast system.
Q2: Will this work in a large space like a church or hall?
Yes. Harmony A3 covers up to 100m / 328ft and is designed for large venues such as churches, classrooms, gyms, and halls with up to 500 seats.
Q3: Can I add more speakers later if I need to expand?
Yes. The system includes 3 receivers and supports unlimited expansion. Add more receivers anytime to cover more rooms or speakers.
Q4: Can I connect my TV, mixer, or laptop to this system?
Yes. Harmony A3 supports Bluetooth, Optical, and 3.5mm AUX input, making it compatible with TVs, mixers, laptops, and media players.
Q5: Will other people interfere with or access my broadcast?
No. Harmony A3 supports password-protected broadcasting and custom naming to keep your audio secure and prevent unwanted connections.
Consultation Booking 📲
Not sure what to do? Book a 15-minute FREE consultation with our Group Listening Expert today!
Buy Add-ons & Accessories
Harmony A3 — Compatibility Checker
Avantree Bluetooth Compatibility Checker
Avantree products are designed for versatility and broad compatibility. However, due to technical limitations, not all devices can work together. We strongly recommend checking compatibility before purchase.
All Bluetooth Devices Checker
(Note: This tool is still under development. 💡 Suggestions are welcome anytime! contact us.)
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