Wireless HD audio system with versatile speakers and audio adapter streams your music collection and online streaming services around your house with no loss in quality. Omni 10 and Omni 20 provide powerful wireless HD audio, while the Adapt updates your existing Hi-Fi to be part of the wireless HD audio system. Works with the apps you love using Bluetooth re-streaming. The “Link” button on each product gives you flexible control of your multi-room experience while the Harman Kardon Controller App gives you simple access to all your music content.