Shenzhen Grand Electronics Thermal Regulation Technology Co., Ltd., is a high-tech company integrating R&D, production and sales of electronic cooling/warming seat cushion and bed mattress product series.the company succeeds in delivering the “Semiconductor Chip Cooling/warming” product series in scientific and systematic way, as well as is proprietary to the intellectual property right. The electronic cooling/warming bed mattress and seat cushion, a result of the internationally advanced semiconductor chip cooling/warming technology makes up the deficiency of traditional mat and cushion whose temperature cannot be conditioned. Instead, the company brings out a perfect combination of research result, technical expertise and traditional bed mat/seat cushion by making mat/cushion readily adjustable to desirable temperature of human body, bringing the user real cool in summer and warm in winter.