Yes.
Zumio can be locked to protect against accidental activation by pressing and holding the on/off button for 5 seconds. This will activate lock-out mode if product. The product vibrates 3 pulses and ramps down to off to let you know it is in ‘lock-out’ mode. Zumio will not turn on in this mode.
To unlock, simply press and hold the on/off button for 5 seconds. Zumio vibrates 3 pulses then turns off to let you know its back in normal use mode. You can then let go and press the on/off button to use the product.