HEOS is a wireless music system that allows you to control all your music effortlessly from anywhere in your home. All you need is one or more HEOS-enabled AV receivers or speakers and the free app. Plus, HEOS now works with Amazon Alexa voice control. The HEOS App gives you access to all your music, and, you can add other users to the line-up to vary the playlist or personalize the room according to the user: His tunes in the kitchen, hers in the master bedroom. Stream from your favorite music service on your network using a smart phone, tablet or by asking Alexa to play it for you