As for the long battery life gps tracker for trailer, I always think there are two types. The first is the conventional locator, the most common in the market and the most widely recognized series of locator, which has been recognized by 90% of users in the market. Then there is another kind of locator, which is used by industry users, and this locator is different according to different people, customers, and the choice of functions. We see a lot of different kinds of locators in our...