Shenzhen Grand Electronic Thermal Regulation Technology Co., Ltd.

Cooling and warming machine must be used with our special mattress, it can adjust temperature of mattaress between 20 degree and 48 degree, you can fix time and temperature.

We have 4 sizes for mattress:

1. 0.6x1.5M (small single bed size).

2. 0.9x1.5M (big single bed size).

3. 1.35x1.5M (small double bed size).

4. 1.7x1.5M (big double bed size).