Too weak \ Waste of money
Okay, I ended up returning the product. The vibration is quite weak. There's vibration sensation that's felt underneath a small area of the middle portion of each of foot. And the vibration intensity is simply not strong enough to satisfy your feet at all. It was so weak I didn't even bother to try the heating function. I just returned it for a refund. The design itself looks nice. They should make the vibration much stronger and would be a really good product. It was just a waste of time trying this unfortunately. I'm so glad I got my money back.
Rating: 1 stars