What are the heating levels shown on the display of my whole body mat?

Ereada® mats bigger than Mini mat have 7 levels of heat on the controller. (Brown Mini mat has an adjustable controller showing 30°C to 70°C temperature)

• Level 1 is 86°F or 30°C ( used for Negative Ions and Potential, all-night sleep low heat mode )
• Level 2 is 98°F or 36°C ( Low mode )
• Level 3 is 110°F or 43°C ( Low medium mode )
• Level 4 is 120°F or 49°C ( Medium mode )
• Level 5 is 133°F or 56°C ( Medium High mode )
• Level 6 is 145°F or 63°C ( High mode )
• Level 7 is 158°F or 70°C ( Highest mode )