Power ON - Press the power button located on the bottom of the Ceramic Mug. You will see the LED illuminate.
Power OFF - Press and hold the power button for 3 Seconds until the light dim to an OFF state. *Note: to make sure the mug is off you can pick up with mug to move it and see if the white light shows up, if it does try to power it off again.
Sleep Mode - Once you turn ON the Ember, you do not need power it on again. The Ember Mug will go to sleep when its empty, and will wake up as soon as you pick it up.