1. 3 zones touch screen controller box.
2. Hundreds of far infrared stones on the heating blanket.
3. Hundreds of ergery stones inside the infrared sauna dome.

4. 3 zones with 2 heating zones in dome and 1 heating on mat.
5. Temperature setting of dome is 25-75 celsius degree.
6. Velcro for easily lay in and out, better sealability.
7. Spiral interface of the controller box make safer and more reliable.
8. Four overheating protection devices in mattress and domes, two in controller box to keep the safety