Power ON - Press the power button located on the bottom of the Ember Mug or Ember Mug². You will see the LED illuminate a white light.
Power OFF - Press and hold the power button for 3 seconds until the LED dims to an OFF state.
*Note: To make sure the mug is OFF you can pick it up to see if the white light shows up. If it does, repeat the steps and attempt to power it OFF again.
Sleep Mode - Once you turn ON the Ember, you do not need power it on again. The Ember will go to sleep when it's empty, and will wake up as soon as you pick it up.