Below are the details from their official site, as follows:
This device is for computer peripherals or car to heat or cool drinks via USB power cord, able to drink cold drinks in hot summer days or hot drinks in chilly winter, no matter inside the car or next to the computer, this device can provide you the excellent lifestyle.
1. Using low voltage and universal USB power, it is safe and convenient, excellent for using at home, office and on board.
2. Built in the heating and cooling function, work on any weather or season.
3. Built in the double color LED (Red LED – Heating, Blue LED- Cooling)
4. Built in adjustable tap to hold the beverage not to spill.
5. Double USB power supply, enhance the efficiency.
6. Unique design-Multi-curvature arc conduction plate for better conductive efficiency.
7. Built in semiconductor refrigeration and PTC heating component