Zune is a personal digital music player developed by Microsoft. With no "Power" button on the device, turning on a Zune isn't necessarily an intuitive task, especially for new users. Fortunately, the Zune's interface is easy to use once you're familiar with its controls.
Hold the Zune vertically.
Press the "Play/Pause" button, the arrow button under the screen and to the right of the circular touch pad.
Hold the "Play/Pause" button down for three seconds. The Zune screen will light up and be ready for use.