This is a smart cup / vacuum cup with a capacity of 500 ml, equipped with an LED screen on the lid to display the temperature of the drink inside.
Functionality:
* Keeps drinks hot or cold for long hours.
* When the lid is touched, the temperature appears on the digital screen.
* Suitable for coffee, tea, cold water, etc.
From the writing on the box:
* Capacity: 500 mL
* LED temperature display screen
* Multi-layer thermal insulation.
* Claims to maintain heat for up to 24 hours (actual duration may vary depending on usage).
If you open the lid and pour a hot or cold drink inside, then touch the top of the lid, the drink's temperature will appear, such as 20°C or others.
The second (the green box from WINMAX) is also a smart thermos (Vacuum Cup), and its function is almost similar to the first, but it seems to be from a different brand and a different design.
Features visible on the box:
* 500 ml capacity.
* LED screen on the lid displays the drink's temperature.
* Thermal insulation to keep drinks hot or cold for a long time.
* Tight lid to prevent leaks.
* Suitable for coffee, tea, and water.
In general, the first and second perform almost the same function, and the difference is often in:
* Manufacturing quality.
* Duration of heat preservation.
* Type of internal metal (preferably stainless steel 304).
* Accuracy of the temperature screen and insulation.
(( New, unused ))