Wireless multi-speaker audio

Wireless Multi Speaker System for Events

Send one audio source to multiple speakers with synchronized sound—without long cable runs, Wi-Fi, or repeated pairing. Choose a complete speaker set, or add wireless receivers to the powered PA speakers you already own.

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  • One source, synchronized speakers
  • No Wi-Fi or app required
  • Expandable as your event grows
  • Optical, AUX or Bluetooth source options
When to choose what

Start with the job your sound system must do

The right system depends more on latency, speaker type and movement than on guest count alone. Use these six event scenarios to narrow the choice quickly.

01

Live speech or video

Choose the lower-latency Harmony 2 when lip-sync, presentations or a live microphone feed matter most.

Choose Harmony 2 →
02

Cafés, bars & shared spaces

Choose Harmony A0 for a compact Auracast transmitter-and-three-speaker setup that distributes the same audio across tables and small shared areas.

Choose Harmony A0 →
03

Small–mid indoor event

Choose Harmony A1 for a ready-to-use transmitter plus three 20W speakers and wide indoor coverage.

Choose Harmony A1 →
04

Music-first shared space

Choose Harmony A2 for synchronized background music with Balance, Voice and Bass EQ controls.

Choose Harmony A2 →
05

Use your existing PA

Choose Harmony A3 to feed the same audio into multiple powered speakers through AUX or RCA.

Choose Harmony A3 →
06

Moving outdoor group

Choose ShareCast for portable voice or program audio with clip-on IP67 speakers—not main-stage PA sound.

Choose ShareCast →

Need different audio in different areas? These systems distribute one source per transmitter. Independent zones need separate transmitters or separate systems. They do not provide app-based, per-speaker music selection.

Event system collection

Recommended wireless multi-speaker systems

Six clear paths: low-latency complete systems, Auracast speaker sets, a receiver kit for existing powered speakers, and a portable option for moving groups.

Harmony 2 Multi-Room Wireless Venue Speaker System for Home & Events, synchronized playback with under 30 ms latency, across all speakers.
Best for live speech + video

Harmony 2

$279.99

A complete transmitter-and-speaker system for indoor presentations, ceremonies and program audio where lower delay matters.

  • Approx. 30 ms speaker-sync latency
  • Up to 65 ft / 20 m; up to 100 Harmony 2 speakers
  • Optical, 3.5 mm AUX and Bluetooth inputs
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Harmony A0 Auracast Bluetooth 5.4 Venue Transmitter with 3 sync Speakers, Expandable Wireless Audio System for restaurants, cafés, and table-by-table audio.
Best for cafés + shared spaces

Harmony A0

$299.99

A transmitter plus three compact Auracast speakers for synchronized table-by-table audio in cafés, bars, offices and other shared spaces.

  • Bluetooth 5.4 Auracast broadcast
  • Up to 328 ft / 100 m in favorable conditions
  • Optical, 3.5 mm AUX and Bluetooth inputs; expandable with compatible Auracast speakers
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Harmony A1 Multi-Room LE Audio Auracast Venue Speaker System for Home & Events for shared sound.
Best all-round Auracast set

Harmony A1

$299.99

A transmitter plus three 20W speakers for synchronized indoor audio across meeting rooms, cafés and small-to-mid event spaces.

  • Approx. 60 ms speaker-sync latency
  • Up to 328 ft / 100 m in favorable line-of-sight conditions
  • Expandable with compatible Auracast speakers and devices
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Harmony A2 Auracast Multi-Room Venue Speaker System Enhanced Sound. Synchronized sound across large spaces for conference rooms, showrooms, restaurants, retail spaces, and event halls.
Best for music-first spaces

Harmony A2

$299.99

A complete three-speaker Auracast system with simple Balance, Voice and Bass EQ modes for background music and shared audio.

  • Approx. 60 ms speaker-sync latency
  • 20W speakers; recommended up to 100 ft / 30 m
  • Optical, 3.5 mm AUX and Bluetooth inputs
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Harmony A3 Auracast Bluetooth 5.4 Transmitter/Receiver Set. Sends one audio source to 3 receivers with 328ft Range
Best for existing powered PA

Harmony A3

$249.99

One transmitter and three compact receivers turn powered speakers or active PA systems into a scalable one-to-many wireless system.

  • Approx. 50–70 ms latency
  • Up to 328 ft / 100 m in open line-of-sight
  • Receiver outputs: 3.5 mm AUX or RCA; not for passive speakers
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ShareCast Auracast wireless speaker tour guide system Clip-On Waterproof Speakers for Any Group Activity
Best for moving groups

ShareCast

$139.99

Compact clip-on speakers for guides, field activities and small outdoor groups that need open-ear voice or program audio.

  • IP67 water- and dust-resistant speakers
  • Up to 15 hours playtime
  • Portable group audio—not a replacement for high-output event PA
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Side-by-side comparison

Compare event audio systems

Match your source, latency requirement and speaker type before comparing price.

System Best for What is included Latency Advertised range* Expansion / compatibility
Harmony 2 Indoor speech, video and presentations 1 transmitter + 3 × 15W speakers Approx. 30 ms Up to 65 ft / 20 m Up to 100 Harmony 2 speakers
Harmony A0 Cafés, bars and compact shared spaces 1 Auracast transmitter + 3 compact speakers Not published Up to 328 ft / 100 m Expandable with compatible Auracast speakers
Harmony A1 Small–mid indoor events and shared spaces 1 Auracast transmitter + 3 × 20W speakers Approx. 60 ms Up to 328 ft / 100 m Compatible Auracast speakers and listening devices
Harmony A2 Background music and better tonal control 1 Auracast transmitter + 3 × 20W speakers Approx. 60 ms Recommended up to 100 ft / 30 m Compatible Auracast speakers and listening devices
Harmony A3 Existing powered speakers or active PA systems 1 transmitter + 3 AUX/RCA receivers; no speakers Approx. 50–70 ms Up to 328 ft / 100 m Add receivers; powered speakers only
ShareCast Moving tours, guides and outdoor small groups USB-C transmitter + clip-on IP67 speakers Approx. 142 ms Up to 50 ft / 15 m Add ShareCast or compatible Auracast speakers

*Wireless range is measured under favorable conditions. Walls, people, competing wireless traffic and transmitter placement can reduce real-world coverage. For live microphones or video, prioritize latency before maximum range.

Buy with a deployment plan

Avoid the wrong system before event day

Tell us your venue layout, audio source, speaker type and whether speech must match video. We will help verify the system, quantities and connection path before you order.

60-Day Returns More time to confirm the system fits your use case.
2-Year Warranty Extended protection when purchased directly from Venucast.
Fast Local Delivery Ships from a local warehouse where available.
Free Setup Support Connection and expansion help from the Venucast team.
Talk to an Audio Specialist Send Us Your Setup Question
Frequently asked questions

Wireless multi-speaker system FAQ

Answers to the compatibility, delay, expansion and setup questions customers ask most often.

How do I choose a wireless multi speaker system for events?

Start with four questions: Is the event indoors or outdoors? Is the source speech, video or background music? Do you need new speakers or receivers for an existing powered PA? How far is the furthest speaker from the transmitter? Choose Harmony 2 for lower-latency indoor speech/video, Harmony A1 or A2 for a complete Auracast speaker set, Harmony A3 for existing powered speakers, and ShareCast for moving groups.

Will every speaker play in sync?

Speakers or receivers within the same supported system receive the same broadcast and are designed for synchronized playback. Do not mix Harmony 2’s dedicated speaker-sync radio link with unrelated speakers. Auracast models should be checked for broadcast compatibility before mixing brands.

Which system has the lowest delay for microphones or video?

Harmony 2 is the strongest choice here, with approximately 30 ms speaker-sync latency. Harmony A1 and A2 are around 60 ms, while Harmony A3 is approximately 50–70 ms. For a live microphone, connect a mixer or wireless microphone receiver through a line-level AUX output; direct XLR, USB or TRRS headset microphones are not supported by these transmitters.

Can I connect the system to my existing PA speakers?

Yes—choose Harmony A3 when your speakers are powered (active) and accept 3.5 mm AUX or RCA input. The kit includes one transmitter and three receivers. Passive speakers still require a separate amplifier and cannot be driven directly by the receivers.

Do I need Wi-Fi, an app or repeated Bluetooth pairing?

No Wi-Fi or control app is required for the core systems on this page. The transmitter takes audio by Optical, AUX or Bluetooth, then distributes it to its speakers or receivers. Compatible Auracast receivers join the selected broadcast instead of using traditional one-to-one Bluetooth pairing.

Can different rooms play different music?

Not from one transmitter. One transmitter distributes one audio source to its connected speakers or receivers. If two rooms need independent content, plan separate transmitters or separate systems and assign each group to its own source or broadcast.

How many speakers can I add?

Harmony 2 supports up to 100 Harmony 2 speakers. Harmony A1 and A2 are designed to expand with compatible Auracast speakers and devices. Harmony A3 can expand by adding compatible receivers for more powered speakers. Actual usable coverage depends on layout, power, obstacles and RF conditions—not speaker count alone.

Can I use these systems outdoors?

ShareCast is the portable IP67 option for moving outdoor groups, guides and activities. Harmony A1, A2 and Harmony 2 are primarily indoor systems and may not provide enough volume for large, noisy outdoor events. For an outdoor PA, use appropriately powered active speakers with Harmony A3 and verify range and weather protection separately.

Can I keep an Auracast broadcast private?

Harmony A3 supports broadcast naming and password-protected broadcasting. If privacy or several nearby broadcasts matter, tell us how many systems will operate at once so the channel and naming plan can be checked before deployment.