HEOS is the controller app for the world’s biggest and best range of connected audio gear. It is a smart music streaming technology found in all models with HEOS Built-in from Denon, Marantz, Definitive Technology and HEOS. HEOS is for music lovers who want a beautiful & intuitive way to enjoy the latest advances in connected audio. It is built into great sounding AV receivers, HiFi equipment, sound bars, speakers, mini systems and specialty multi-room models for custom integration. Features: • True multi-room audio - play different songs in different rooms or the same song in multiple rooms • Quick and easy setup • Utilize your existing home wireless network • Play from online music services, music stored on your mobile device, USB, analog inputs, computers, NAS drives – including High-Resolution audio quality • Support for multiple users and multiple music service accounts For current availability of online music services in your location, please visit: heosbuiltin.com/music