Avantree Harmony A3 Auracast Wireless Transmitter & Receiver Set for Powered Speakers, Turn Multiple Individual Speakers into One Unified Audio System, 328ft Range Home, Multi-Room Events

【Sync Multiple Powered Speakers】Connect your AV receiver, Bluetooth speaker, soundbar, or other powered (active) speakers to individual receivers and stream one audio source to all speakers in sync – no repeated pairing required. 【Perfect for Home Parties & Shared Spaces】Play the same music across your living room, kitchen, patio, garage, or backyard. Ideal for parties, BBQs, game nights, and small to medium homes or venues. 【Works with TV, Phone, Laptop & More】Connect via Optical (OPT), 3.5mm AUX, or Bluetooth. Compatible with TVs, smartphones, tablets, laptops, PCs, and more. Broadcast from almost any device to multiple speakers. 【Expandable System – Not for Passive Speakers】Each receiver connects to a powered speaker via 3.5mm AUX or RCA. Add more receivers anytime to expand your system. NOT compatible with passive speakers. 【Long Range for Small to Medium Spaces】Up to 328ft (100m) in open space. Stable coverage across rooms, patios, and event areas.