Wire:It can folding and have the function of anti-tensile,anti-torsional.It also can be washed by the hands and washer. Healthy:The exact wavelength is about 2-20 micro.It is the best wavelength for people's health. Safe:The ultra low electric-field intensity could make user far away from the electromagnetic radiation and the induced current injury when enjoy the warm winter. 注意事项： A. 严禁通电时折叠产品。B. 禁止长时间覆盖物品。C. 严禁压重物。D. 务必保持车内环境干燥。E.停止使用时请切断电源。 Notice: It forbid to be fold up when power is on.If it is covered with something then you must make sure the cover be distributed evenly.Do not put some hard solid or sharpen things on it,also don not in revers.It should be used in dry conditions,so guard against damp is important.Do not use it together with other heating device.It should be turn off the power when you stop to use it.