You can now wear your mask around everywhere and say unexpected, non-Wookie things to the delight of everyone! Turn the selector knob when they seem bored or annoyed and amaze them with the whole new collection of funniness.
When not in use, turn off the switch to conserve battery power. When you want to charge it, simply plug it into the a USB cable connected to a computer or wall charger. And, don’t forget, you can easily swap out the sounds for new ones whenever you desire.
Remember, "It's not me making the noise, it's the mask!"