Cold and hot dual-use, heating effect 55-65°C, cooling effect -3°C-5°C, more convenient to use. Small size, lightweight, portable and easy to carry, one-key cooling and heating, simple operation. Large screen, with visible temperature display, touching screen, suitable for car, home and office use. Heightened base, suitable for car cup holder with low height. Silent, reasonable internal structure and noise reduction of components, ensuring the effective reduction of decibels while working. Feature: 1. Cold and hot dual-use, heating effect 55-65°C, cooling effect -3°C-5°C, more convenient to use 2. Small size, lightweight, portable and easy to carry, one-key cooling and heating, simple operation. 3. Large screen, with visible temperature display, touching screen,suitable for car, home and office use.