This runs on one double a battery and to turn it on or off you just press down on the bottom piece which is also where the battery goes

This is also really fantastic if you have sinus pressure because of the magnetic note that sat at the tip of the massager

This is very easy to use and what i would consider to be userfriendly

Yes my electric portable facial massager is helping me helps tame the temple tension headaches from sitting on the phone all day at work