Shenzhen Grand Electronic Appliance Company is a hi-tech, professional R&D, manufacturer of air conditioner warm and cool bed mattress and seat cushion, with principle of “technology innovation”, energy-saving, environment-protecting, humankind as basic” enterprise management theory, we develop closely around “healthcare, bless human”. Scientifically and systematically adopt “peltier semic-conductor chip for warming and cooling ” and own ourselves series of technical property right. Air conditioner mattress and cushion make up the flaw traditional mattress and cushion that can’t adjust the temperature for thousands of years, and combine together without any affect on the structure of mattress and chair. change the temperature as desired, so it can be warm in the winter and cool in the summer. Grand technology have built up professional R&D team specialize in all kinds of fileds skill, advanced technology and deeply understand and master the theory of products, and can catch the requirement of the market to develop series of products suitable to kinds of people and market, we built ourselves production factory in HuiZhou City of GuangDong Province. ...