Size: 120*190cm 150*190cm 180*200cm Style: plain Reset: Variable Potentiometer Electric Voltage: 220V+-20% Electric Current: 50HZ Power: 300W Scope of Feeling Temperature: 20-38 degree Scope of Control Temperature: 18-70 degree Environment of Moisture: 90% Internal Structure: 1. High Grade Leather 2. Mesh Fabric 3. Germanite, Tourmaline 4. Bamboo Charcoal Fiber of Cotton 5. Fibre Glass Laminates 6. Heat Generating 7. Installation of Thermal Sensors 8. Ecological Non-Woven Cloth 9. Device of Cohesive Energy Reducing Heat Generating 10. Ecological Compression of Cotton 11. Ecological Compression of Cotton 12. Thermal Resistance 13. Cowheels of Waterproof Cloth External Structure: Separate Temperature Controllers (Left or Right switch can be controlled seperately, and the temperature too): 1. Left /Right Electrical Source:The heat generates when power on. 2. Left /Right Temperature Switch: Change the temperature according to the numbers on the board. And the controllers can keep constant temperature when the heat comes to the point. About the Germanite Mattress Germanite is also called "Apyrite”. It contians 45 mineral substances of organic germanium, emery, pearl powder, elements of chinese medicine, magnesium, iron, calcium, potassium, sodium, and carbon, etc. Those components are helpful for anticancer, prevent arteriosclerosis, and cure to osteoporosis. The Germanite Mattress has effects to adjust central nervous system, improve quality of sleep, and heighten the ability of immunity and anti-aging.