Powerful little machine
This is a very small but powerful little machine. It's lightweight and battery-powered. my husband almost use it everyday  in the past week. He got back pain, this little helper was a relief.  He also used it to relax muscles. don't let the size fool you, it is powerful. You can hook up to 4 pads at the same time. I don't konw the battery lilf, but we haven't charge it after use 6 times. Overall money well spend.
Rating: 5 stars