---
product_id: 616711887
title: "Avantree Harmony - Multi-Room Wireless Speaker System for TV & Outdoors - Ideal for Wired Audio Sources - Each Speaker Can Be Used Independently"
brand: "avantree"
price: "¥12528"
currency: JPY
in_stock: false
reviews_count: 13
url: https://www.desertcart.jp/products/616711887-avantree-harmony-multi-room-wireless-speaker-system-for-tv-outdoors
store_origin: JP
region: Japan
---

# 30m Bluetooth range 15W max output power 30ms ultra-low latency Avantree Harmony - Multi-Room Wireless Speaker System for TV & Outdoors - Ideal for Wired Audio Sources - Each Speaker Can Be Used Independently

**Brand:** avantree
**Price:** ¥12528
**Availability:** ❌ Out of Stock

## Summary

> 🎶 Elevate your space with sound that moves with you — Harmony in every room, party, and moment.

## Quick Answers

- **What is this?** Avantree Harmony - Multi-Room Wireless Speaker System for TV & Outdoors - Ideal for Wired Audio Sources - Each Speaker Can Be Used Independently by avantree
- **How much does it cost?** ¥12528 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/616711887-avantree-harmony-multi-room-wireless-speaker-system-for-tv-outdoors)

## Best For

- avantree enthusiasts

## Why This Product

- Trusted avantree brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Setup:** No apps, no fuss—just power on and enjoy instant wireless connection across all speakers.
- • **True Wireless Freedom:** Place speakers up to 100ft apart with stable Bluetooth connectivity and water-resistant durability.
- • **Independent or Unified:** Use each speaker solo via Bluetooth or combine them for a powerful multi-room audio experience.
- • **Seamless Multi-Room Sync:** Effortlessly connect up to 100 speakers with near-zero audio delay for immersive sound everywhere.
- • **Dual Drivers & Bass Radiators:** Experience crisp highs and deep, punchy bass that fills any space, indoors or out.

## Overview

The Avantree Harmony is a versatile, battery-powered wireless speaker system designed for multi-room and outdoor use. Featuring 15W output, dual drivers with bass radiators, and ultra-low 30ms latency, it supports up to 100 speakers connected simultaneously via a private protocol. With a 30-meter Bluetooth range, water resistance, and effortless plug-and-play setup, each speaker can operate independently or in sync, delivering crisp, powerful audio wherever you go.

## Description

Product description BEFORE YOU BUY The included transmitter must be used in order to play audio through all 3 speakers simultaneously. You can only connect to one speaker at a time via your phone's Bluetooth. To connect your phone to multiple speakers simultaneously, consider using the Avantree Audiplex transmitter. Perfectly Positioned Small handles allow you to hang your speakers on trees, from walls, or wherever else. Easily Portable Freely bring or move the battery-powered speakers around and even use them while they’re charging. Independent Volumes Adjust each speaker’s volume separately from the others’ for total control. In Sync The speakers play in perfect sync with each other with no distracting audio delays. EASY SETUP Plug Plug the transmitter into a power outlet and connect to your audio source’s audio output port. Switch If necessary, switch your audio source’s (typically your TV’s) audio settings to “PCM / Stereo.” Place Place the speakers wherever you please within a range of 100ft / 30m of the transmitter. Play Turn on the speakers and transmitter; they’ll connect automatically. Hit play and enjoy! Transmitter & Speakers How to use Avantree Harmony with my phone? Stream audio to multiple speakers using the Harmony transmitter. Connect via AUX or get an adapter for iPhones. Upcoming 2024 upgrade allows wireless streaming. Free upgrade for existing users. How to use Avantree Harmony with my phone? Stream audio to multiple speakers using the Harmony transmitter. Connect via AUX or get an adapter for iPhones. Upcoming 2024 upgrade allows wireless streaming. Free upgrade for existing users. Can I add my own Bluetooth speakers to the set? No, only Avantree Harmony-Extra speakers are compatible due to private protocol connections. Can I add my own Bluetooth speakers to the set? No, only Avantree Harmony-Extra speakers are compatible due to private protocol connections. Can I use the transmitter to transmit audio to my Bluetooth headphones? No, the transmitter will only work with Avantree Harmony speakers or Quartet headphones. Can I use the transmitter to transmit audio to my Bluetooth headphones? No, the transmitter will only work with Avantree Harmony speakers or Quartet headphones.

Review: Sound great, super easy to use - Incredibly easy to set up. Works great. Saw reviews saying they weren't louder than a phone that is not true they are much louder and better sound quality. I am pushing the limits on the range of these but they function and work perfect. Very happy with the purchase
Review: My overall experience - The product says 8 hours before recharge however that is subject to volume. The connection times out frequently so be ready to disconnect and reconnect. I will say sound quality is excellent, but it also means if it's music you may need to change the EQ setting. I would not purchase this item again.

## Features

- [MULTI-SPEAKER MODE] Connect the included transmitter to an audio source (such as a laptop or tablet) via AUX or optical and output audio through all three speakers simultaneously.
- [BLUETOOTH MODE] Connect your phone or other Bluetooth-enabled device directly to one of the three speakers via Bluetooth. Note that you can only connect to one speaker at a time in this mode.
- [EASY SETUP] Once the transmitter and speakers are turned on, they’ll all automatically connect – no need to manually pair or use an app.
- [HIGH-QUALITY AUDIO] Dual drivers and dual bass radiators in each speaker provide extra-loud, extra-crisp audio.
- [NO DELAYS] With a latency of less than 30ms, the speakers work perfectly in sync with each other with no audio delays or stutters.
- [SCALABLE TO 100] Add up to 100 Harmony speakers to expand your home speaker system while maintaining low latency. Please note that ONLY Harmony add-on speakers are compatible due to private protocol connections.
- [INDEPENDENT USE] Each speaker can also connect independently to your phone, tablet, laptop, or any other Bluetooth enabled device.
- [EXTENDED RANGE] An extended range of up to 100ft / 30m allows you to strategically place speakers in other rooms while sustaining a strong, clear connection.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CKVW1KVX |
| Additional Features | Multi Room Audio |
| Antenna Location | For Music Playback in Multiple Rooms & Outdoor Parties |
| Audio Driver Type | Dynamic Driver |
| Audio Latency | 30 Milliseconds |
| Audio Output Mode | Stereo |
| Battery Average Life | 6 Hours |
| Best Sellers Rank | #240,414 in Electronics ( See Top 100 in Electronics ) #1,365 in Portable Bluetooth Speakers #3,120 in Home Audio Speakers |
| Bluetooth Range | 30 Meters |
| Brand | Avantree |
| Built-In Media | Transmitter, 3 Portable Bluetooth Speakers |
| Color | Black |
| Compatible Devices | ['Smartphone', 'Tablet', 'Laptop'] |
| Connectivity Protocol | Bluetooth |
| Connectivity Technology | Wireless |
| Control Method | Touch |
| Controller Type | Button |
| Customer Package Type | FFP |
| Customer Reviews | 3.6 out of 5 stars 50 Reviews |
| Frequency Response | 20 KHz |
| Is Electric | No |
| Is Waterproof | True |
| Item Dimensions D x W x H | 12.2"D x 4.33"W x 11.81"H |
| MP3 player | No |
| Manufacturer | Avantree |
| Maximum Range | 100 Feet |
| Model Name | Harmony |
| Model Number | WSSP-5308 |
| Mounting Type | Lanyard on the speaker |
| Number of Audio Channels | 4.0 |
| Number of Batteries | 3 Lithium Ion batteries required. (included) |
| Number of Items | 1 |
| Number of Power Levels | 65 |
| Power Source | Battery Powered |
| Speaker Maximum Output Power | 15 Watts |
| Speaker Size | 30.2 Centimeters |
| Speaker Type | Multimedia |
| Specific Uses For Product | Music Playback in Multiple Rooms & Outdoor Parties |
| Subwoofer Connectivity Technology | Wireless |
| Tweeter Diameter | 1 Inches |
| Unit Count | 1.0 Count |
| Warranty Description | Warranty - 24 months (product registration to cover first 12m return shipment cost) | Extensive Support: Chat, Email, Phone, Online Clinic, Video Tutorials, FAQ and Registration - avantree.com/support |
| Warranty Type | Limited |
| Water Resistance Level | Water Resistant |
| Wireless Technology | Bluetooth |

## Product Details

- **Brand:** Avantree
- **Speaker Maximum Output Power:** 15 Watts
- **Connectivity Technology:** Wireless
- **Audio Output Mode:** Stereo
- **Mounting Type:** Lanyard on the speaker

## Images

![Avantree Harmony - Multi-Room Wireless Speaker System for TV & Outdoors - Ideal for Wired Audio Sources - Each Speaker Can Be Used Independently - Image 1](https://m.media-amazon.com/images/I/61tGv7mpABL.jpg)
![Avantree Harmony - Multi-Room Wireless Speaker System for TV & Outdoors - Ideal for Wired Audio Sources - Each Speaker Can Be Used Independently - Image 2](https://m.media-amazon.com/images/I/51xywuQB9GL.jpg)
![Avantree Harmony - Multi-Room Wireless Speaker System for TV & Outdoors - Ideal for Wired Audio Sources - Each Speaker Can Be Used Independently - Image 3](https://m.media-amazon.com/images/I/71n0ulXwpXL.jpg)
![Avantree Harmony - Multi-Room Wireless Speaker System for TV & Outdoors - Ideal for Wired Audio Sources - Each Speaker Can Be Used Independently - Image 4](https://m.media-amazon.com/images/I/61PkbeLYGcL.jpg)
![Avantree Harmony - Multi-Room Wireless Speaker System for TV & Outdoors - Ideal for Wired Audio Sources - Each Speaker Can Be Used Independently - Image 5](https://m.media-amazon.com/images/I/51oYJWbLlsL.jpg)

## Available Options

This product comes in different **Set** options.

## Questions & Answers

**Q: How to use Avantree Harmony with my phone?**
A: Stream audio to multiple speakers using the Harmony transmitter. Connect via AUX or get an adapter for iPhones. Upcoming 2024 upgrade allows wireless streaming. Free upgrade for existing users.

**Q: Can I add my own Bluetooth speakers to the set?**
A: No, only Avantree Harmony-Extra speakers are compatible due to private protocol connections.

**Q: Can I use the transmitter to transmit audio to my Bluetooth headphones?**
A: No, the transmitter will only work with Avantree Harmony speakers or Quartet headphones.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Sound great, super easy to use
*by G***D on October 1, 2025*

Incredibly easy to set up. Works great. Saw reviews saying they weren't louder than a phone that is not true they are much louder and better sound quality. I am pushing the limits on the range of these but they function and work perfect. Very happy with the purchase

### ⭐⭐⭐ My overall experience
*by I***N on February 17, 2026*

The product says 8 hours before recharge however that is subject to volume. The connection times out frequently so be ready to disconnect and reconnect. I will say sound quality is excellent, but it also means if it's music you may need to change the EQ setting. I would not purchase this item again.

### ⭐ Did not work
*by L***. on April 13, 2026*

We ended up returning these because we could not get all three speakers to work. One may have been busted because it buzzed, and we were not able to shut it off. It was the strangest thing! We ended up putting it outside until it finally died.

## Frequently Bought Together

- Avantree Harmony - Wireless Speaker System for Multiple Rooms & Outdoor Party, 1 Transmitter & 3 Portable Bluetooth Speakers with Separate Volume Controls, Scalable to 100 Multi Speakers
- Avantree Bluetooth & Multi-Room Add-On Speaker for Harmony Set

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-07-07*