BEST PART it does NOT have to be plugged in to use, but can be used plugged in as well!
My brother-in-law has one similar from brownstone that he pasi much more for (I have used his several times and found this one similar) GREAT PRODUCT! JUST AS GOOD IF NOT BETTER!! I have had a spinal fusion and suffer from chronic back & shoulder pain, I also suffer from migraines and some of the migraines are triggered from knots in my shoulder and this massager DEFINITELY does the job and relieves the tension,  u will save money and time from not having to get massages! Car charger is also included
Rating: 5 stars