Suitable for use in large rooms, the dark gray Samsung Radiant360 R5 Wireless Speaker offers a spacious, 360° soundfield. This omni-directional speaker features dual-band Wi-Fi and Bluetooth wireless connectivity, and can be controlled by the free Samsung Multiroom App 2.0 for iOS and Android devices. Once connected to your network, you can control your speakers from compatible smart devices. The Multiroom App 2.0 allows you to enjoy Internet radio sources and add additional Radiant360 R5 speakers for multi-room enjoyment.