Experience advanced thermotherapy with the Smart Thermotherapy Device. Featuring sleek black design and powered by SenseiQ™ Technology for optimal performance. They retail for $999 as shown in the last picture. These are advanced technology heating stones. This device would be great for a professional masseuse. I used these when I was pregnant maybe 2 times they have been sanitized. I just have no use for these anymore. But these would be great for professional use or for couples, or if you have back pain these are amazing. still in box and instruction Manual.