The new utility model compared with existing technology, the biggest characteristic is to produce electricity heating wire alternating electromagnetic fields, but through without magnetic boundary magnetic fields produced balance out each other, thus, can effectively prevent the low frequency high electric magnetic field for the harm to human body product process characteristics: use convenient, fast heating, heat preservation is good, is now widely used in electric blanket, electric heat MATS and electric heat insulation products such as jade mattress in products: double WenShuang control of area: 1.8 * fever 2 m fever area: 1480 * 1560 mm (can depend on customer special requirement) specification: double temperature: 200 ℃ silica gel insulation configuration: 65 ℃ 75 ℃ Texas protector 85 ℃ 90 ℃ probe: 20 K 50 K 100 K voltage: 220 V power: double 280 W