Small size, easy to carry, the overall weight is 6.4kg, the handle weighs only Ikg;the transportation cost is low, thereis no need to configure a separate computer, manual focusing, and the integrated touchscreen is used; which is simple to operate and quick to use. Built in work without plugging in the power cord after fully charged; and the battery is 6-8 hours; It can realize mobile marcking and outdoormarking.