150g

In recent years， the U.S. military has been keen in the development of soldier sensor technology， trying to use it in the pocket-size micro UAV， and announced that soldiers will be equipped with this pocket flying device before 2018. The weight of the UAV can not exceed 150 grams， and needs to be put into the pocket of the soldiers， and the battery endurance needs to reach at least 15 minutes.

In addition， the U. S. military said that although the size of the UAV is very small， but it must be able to withstand the wind speed of 10～15， and need to be able to put into use within 1200 meters of the range. The development of such a small unmanned aerial vehicle is helpful to the real-time monitoring of the potential danger in the surrounding environment， while some large UAVs are not suitable for this kind of work.