I purchased this about 6months ago. Just a heads up, a lot of the papers are in Chinese, but the basic instructions are translated into English. I’ve used it about 6 times and I’ve had no issues. I have not used the slippers yet or the large back strap thing. All was in good condition.
I got this a few months ago and I love it! It helps so much with my scapula bursitis. I can use it instead of taking Advil. Wash the pads off with soap & water, let them dry and they’re back to being sticky.