3-Room Audio: The PD WT10SET is a cutting-edge Wi-Fi ceiling speaker system for three rooms, ideal for homes and small businesses. It offers clear, immersive sound across different zones, perfect for background music. App-Controlled: Control is easy via the 4STREAM app on smart devices. This app's intuitive interface allows users to adjust volume, select songs, and set preferences for each room, making these smart ceiling speakers highly user-friendly. Moisture-Resistant: The system features 5-inch moisture-resistant ceiling speakers, suitable for humid areas like bathrooms and kitchens. They provide durable performance and a balanced sound profile.