Okay, today I will explain to my friends and brothers how our cooler can keep the cold for 5 days. The first reason is the production process and materials. With the materials and components that go through the quality process, our cooler has great capabilities. But, but, that's not all. There are many other things you should know.

Let's say that if we want our cooler to keep the coolness at its best and to be worthy of its quality, our friends and brothers should do the following.

Also, you should fill the cooler with ice (because we tested the efficiency at the Max level like this). The more you put in, the longer the cold will last.

          Second, the cooler should be in a room temperature environment, not too hot, because the surrounding temperature and heat have a direct effect on the ability to keep our cooler cool.

As for the third, frequent opening and closing of the cooler also has an effect. Therefore, if it is not necessary, it should not be opened frequently. Because opening the cooler once will cause the cool air to leak and heat to enter as usual.

Ah, four, besides room temperature, sunlight is also important. You should not place the cooler directly in sunlight because you know how naughty the sun is to us. Even our skin gets burned. What will be left of our cooler? Right?

Ah, that's it! With just a few steps, you can use your cooler to its full potential. It may decrease depending on your usage behavior and other environmental factors, but I assure you that these 4 points are the main factors.