Hold the Power Button until you hear 3 pulses which indicates your Zumio is now in travel mode. Your Zumio will stay in travel mode until you deactivate it. To deactivate the travel mode, press the power button and wait until you hear it pulse 3 times. You have now disengaged the travel mode and your Zumio is ready to use.
Travel mode will not work if the unit is on when you hold the power button down, unit must be off when you press and hold the power key (which turns unit on, keep holding until the 3 pulses).