--- product_id: 604534896 title: "Avantree Harmony A1 – Auracast Multi-Room Wireless Speaker System for Whole-Home Audio & Background Music, Expandable Setup for Stores & Small Venues, Bluetooth Audio Input, Optical & AUX" brand: "avantree" price: "€ 622.92" currency: EUR in_stock: true reviews_count: 10 category: "Avantree" url: https://www.desertcart.be/products/604534896-avantree-harmony-a1-auracast-multi-room-wireless-speaker-system-whole store_origin: BE region: Belgium --- # 100m wireless range 20W stereo output Expandable multi-room sync Avantree Harmony A1 – Auracast Multi-Room Wireless Speaker System for Whole-Home Audio & Background Music, Expandable Setup for Stores & Small Venues, Bluetooth Audio Input, Optical & AUX **Brand:** avantree **Price:** € 622.92 **Availability:** ✅ In Stock ## Summary > 🎶 Elevate your space with wireless harmony—because your sound deserves to be everywhere. ## Quick Answers - **What is this?** Avantree Harmony A1 – Auracast Multi-Room Wireless Speaker System for Whole-Home Audio & Background Music, Expandable Setup for Stores & Small Venues, Bluetooth Audio Input, Optical & AUX by avantree - **How much does it cost?** € 622.92 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/604534896-avantree-harmony-a1-auracast-multi-room-wireless-speaker-system-whole) ## 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 - • **Effortless Expansion:** Start with 3 speakers and add unlimited Auracast-enabled devices anytime—your system grows with your lifestyle. - • **Long-Range Stability:** Reliable audio transmission up to 100 meters keeps your music flowing uninterrupted, even in larger spaces. - • **Future-Proof Firmware:** Regular updates unlock new features and improvements, ensuring your system stays cutting-edge and hassle-free. - • **Plug & Play Simplicity:** No Wi-Fi or app needed—just connect your device and enjoy instant wireless streaming via Bluetooth, Optical, or AUX. - • **Seamless Whole-Home Audio:** Fill every corner with synchronized, crystal-clear sound across multiple rooms or venues. ## Overview Avantree Harmony A1 is a versatile multi-room wireless speaker system designed for seamless indoor audio in homes, stores, and small venues. Featuring 20W stereo output, up to 100 meters Bluetooth range, and expandable Auracast technology, it delivers synchronized background music without the need for Wi-Fi or apps. With easy setup and continuous firmware updates, Harmony A1 adapts to your evolving audio needs with professional-grade reliability. ## Description Product Description What is Harmony A1 and who is it for? Harmony A1 is a wireless speaker system for indoor shared audio. It is ideal for homes, cafés, restaurants, meeting rooms, classrooms, retail spaces, and small gatherings. For outdoor events or loud parties, a higher-power system may be better. What is Harmony A1 and who is it for? Harmony A1 is a wireless speaker system for indoor shared audio. It is ideal for homes, cafés, restaurants, meeting rooms, classrooms, retail spaces, and small gatherings. For outdoor events or loud parties, a higher-power system may be better. How many Harmony A1 speakers can I connect? With Auracast, Harmony A1 can connect to unlimited compatible speakers or headphones from one transmitter. You can start with a small setup and add more speakers anytime as your multiroom audio needs grow. How many Harmony A1 speakers can I connect? With Auracast, Harmony A1 can connect to unlimited compatible speakers or headphones from one transmitter. You can start with a small setup and add more speakers anytime as your multiroom audio needs grow. Does Harmony A1 require Wi-Fi or an app? No. Harmony A1 works without Wi-Fi or an app. Connect your phone, computer, or other audio source to the transmitter, power on the speakers, and start listening. Does Harmony A1 require Wi-Fi or an app? No. Harmony A1 works without Wi-Fi or an app. Connect your phone, computer, or other audio source to the transmitter, power on the speakers, and start listening. Can I use Harmony A1 with TVs? Yes, but Harmony A1 is designed for shared room audio, not TV lip-sync listening. Since wireless transmission adds some delay, we do not recommend using it together with your TV’s built-in speakers. Can I use Harmony A1 with TVs? Yes, but Harmony A1 is designed for shared room audio, not TV lip-sync listening. Since wireless transmission adds some delay, we do not recommend using it together with your TV’s built-in speakers. What devices can Harmony A1 work with? Harmony A1 supports audio input through Bluetooth, Optical, and AUX (depending on transmitter model). It works with phones, laptops, tablets, media players, and other audio sources. What devices can Harmony A1 work with? Harmony A1 supports audio input through Bluetooth, Optical, and AUX (depending on transmitter model). It works with phones, laptops, tablets, media players, and other audio sources. SPECIFICATIONS COMPARISON TABLE Avantree Harmony A1 Avantree Harmony A2 Avantree Harmony A3 Avantree Harmony 2 Review: Excellent service - Excellent customer service if there are any issues and a great product all round. Review: Outstanding customer support - Thank you Jeany for all your help. Our system has become an integral part of our working environment and works seamlessly. When I had to sort something out, Avantree’s customer support, in particular Jeany, was outstanding. ## Features - 【For Multi-Room Background Audio】Includes a transmitter and 3 speakers – designed for seamless music across rooms, ideal for homes, stores, restaurants, and small venues with consistent, shared sound. - 【Firmware Update Reminder】Unlock new features and continuous improvements through firmware updates – including options like keeping the speaker powered on continuously for uninterrupted use. - 【Expandable Auracast Speaker System】Add more Harmony A1 speakers or Auracast-enabled devices anytime – build a flexible multi-room system that grows with your space. - 【Up to 100M Wireless Transmission】 Enjoy stable Auracast audio transmission up to 100 meters between the transmitter and speakers (range may vary depending on environment and obstacles). - 【Bluetooth, Optical & AUX Input】Stream audio from your phone via Bluetooth (works best when your device is near the transmitter), or connect to TVs and media players using Optical or AUX. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0G3WNJ1M6 | | Antenna Location | Music listening, parties, house gatherings, TV audio, office audio, and shared indoor sound. | | Audio Driver Type | Dynamic Driver | | Audio Output Mode | Stereo | | Audio output mode | Stereo | | Best Sellers Rank | 360 in Portable Bluetooth Speakers | | Bluetooth Range | 100 Metres | | Box Contents | 1 * Optical Cable, AUX Cable, 1 * Power Charger, 1 * Transmitter with Charging Cable, 3 * Auracast Speakers with Charging Cables | | Brand | Avantree | | Brand Name | Avantree | | Compatible Devices | Smartphone, Tablet, Laptop, Television | | Connectivity Protocol | Bluetooth, Optical, AUX | | Connectivity technology | Auxiliary , Bluetooth, Optical | | Country of Origin | China | | Customer Reviews | 3.8 out of 5 stars 48 Reviews | | Is Waterproof | False | | Item Dimensions D x W x H | 33D x 12.5W x 30.8H centimetres | | Manufacturer | Avantree | | Maximum Range | 100 Metres | | Maximum Speaker Output Power (in watts) | 20 Watts | | Model Name | Harmony A1 | | Model Number | BTST-5309 | | Model name | Harmony A1 | | Mounting Type | Floor Standing | | Mounting type | Floor Standing | | Network Connectivity Technology | Auxiliary, Bluetooth, Optical | | Number of Batteries | 3 Lithium Ion batteries required. (included) | | Number of Items | 1 | | Power Source | Corded Electric | | Product Features | 1.Auracast Sync; 2. Expandable System; 3. Easy Setup | | Product Warranty | 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 | | Speaker Size | 31.09 Centimetres | | Speaker Type | Portable Speaker | | Speaker maximum output power | 20 Watts | | Specific Uses For Product | Multi-room audio system, home and portable | | Unit Count | 1.0 count | | Warranty Type | Extended | | Wireless Technology Type | Bluetooth | ## Product Details - **Brand:** Avantree - **Speaker maximum output power:** 15 Watts - **Frequency response:** 20 KHz - **Connectivity technology:** Bluetooth - **Audio output mode:** Stereo - **Mounting type:** Tabletop - **Model name:** WSSP-5308 - **Speaker type:** Multimedia - **Special feature:** Multi Room Audio - **Recommended uses for product:** home audio enhancement, outdoor events, multi-room audio, wireless music streaming, party entertainment ## Images ![Avantree Harmony A1 – Auracast Multi-Room Wireless Speaker System for Whole-Home Audio & Background Music, Expandable Setup for Stores & Small Venues, Bluetooth Audio Input, Optical & AUX - Image 1](https://m.media-amazon.com/images/I/81GYw2+BXbL.jpg) ![Avantree Harmony A1 – Auracast Multi-Room Wireless Speaker System for Whole-Home Audio & Background Music, Expandable Setup for Stores & Small Venues, Bluetooth Audio Input, Optical & AUX - Image 2](https://m.media-amazon.com/images/I/616jfMPh7XL.jpg) ![Avantree Harmony A1 – Auracast Multi-Room Wireless Speaker System for Whole-Home Audio & Background Music, Expandable Setup for Stores & Small Venues, Bluetooth Audio Input, Optical & AUX - Image 3](https://m.media-amazon.com/images/I/71UQwXhxOSL.jpg) ![Avantree Harmony A1 – Auracast Multi-Room Wireless Speaker System for Whole-Home Audio & Background Music, Expandable Setup for Stores & Small Venues, Bluetooth Audio Input, Optical & AUX - Image 4](https://m.media-amazon.com/images/I/715W-W76nBL.jpg) ![Avantree Harmony A1 – Auracast Multi-Room Wireless Speaker System for Whole-Home Audio & Background Music, Expandable Setup for Stores & Small Venues, Bluetooth Audio Input, Optical & AUX - Image 5](https://m.media-amazon.com/images/I/71VBf2U-9dL.jpg) ## Available Options This product comes in different **Set** options. ## Questions & Answers **Q: What is Harmony A1 and who is it for?** A: Harmony A1 is a wireless speaker system for indoor shared audio. It is ideal for homes, cafés, restaurants, meeting rooms, classrooms, retail spaces, and small gatherings. For outdoor events or loud parties, a higher-power system may be better. **Q: How many Harmony A1 speakers can I connect?** A: With Auracast, Harmony A1 can connect to unlimited compatible speakers or headphones from one transmitter. You can start with a small setup and add more speakers anytime as your multiroom audio needs grow. **Q: Does Harmony A1 require Wi-Fi or an app?** A: No. Harmony A1 works without Wi-Fi or an app. Connect your phone, computer, or other audio source to the transmitter, power on the speakers, and start listening. **Q: Can I use Harmony A1 with TVs?** A: Yes, but Harmony A1 is designed for shared room audio, not TV lip-sync listening. Since wireless transmission adds some delay, we do not recommend using it together with your TV’s built-in speakers. **Q: What devices can Harmony A1 work with?** A: Harmony A1 supports audio input through Bluetooth, Optical, and AUX (depending on transmitter model). It works with phones, laptops, tablets, media players, and other audio sources. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent service *by A***. on 23 April 2026* Excellent customer service if there are any issues and a great product all round. ### ⭐⭐⭐⭐⭐ Outstanding customer support *by C***Y on 22 October 2025* Thank you Jeany for all your help. Our system has become an integral part of our working environment and works seamlessly. When I had to sort something out, Avantree’s customer support, in particular Jeany, was outstanding. ### ⭐⭐⭐⭐ Satisfied *by J***I on 23 October 2024* Good and simple to operate. One of them had a factory problem, and it was replaced immediately. Thank you. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/604534896-avantree-harmony-a1-auracast-multi-room-wireless-speaker-system-whole](https://www.desertcart.be/products/604534896-avantree-harmony-a1-auracast-multi-room-wireless-speaker-system-whole) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-07-04*